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WID-SEC-W-2026-0690
Vulnerability from csaf_certbund - Published: 2026-03-10 23:00 - Updated: 2026-05-18 22:00Summary
cURL: Mehrere Schwachstellen
Severity
Mittel
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: cURL ist eine Client-Software, die das Austauschen von Dateien mittels mehrerer Protokolle wie z. B. HTTP oder FTP erlaubt.
Angriff: Ein Angreifer kann mehrere Schwachstellen in cURL ausnutzen, um Sicherheitsvorkehrungen zu umgehen, und um Informationen offenzulegen.
Betroffene Betriebssysteme: - Linux
- UNIX
Affected products
Known affected
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
SUSE Linux
SUSE
|
cpe:/o:suse:suse_linux:-
|
— | |
|
Ubuntu Linux
Ubuntu
|
cpe:/o:canonical:ubuntu_linux:-
|
— | |
|
SUSE openSUSE
SUSE
|
cpe:/o:suse:opensuse:-
|
— | |
|
Meinberg LANTIME <7.10.009
Meinberg / LANTIME
|
<7.10.009 | ||
|
Open Source cURL <8.19.0
Open Source / cURL
|
<8.19.0 | ||
|
Fedora Linux
Fedora
|
cpe:/o:fedoraproject:fedora:-
|
— |
Affected products
Known affected
6 products, the same list as for
CVE-2026-1965
Affected products
Known affected
6 products, the same list as for
CVE-2026-1965
Affected products
Known affected
6 products, the same list as for
CVE-2026-1965
References
26 references
{
"document": {
"aggregate_severity": {
"text": "mittel"
},
"category": "csaf_base",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "de-DE",
"notes": [
{
"category": "legal_disclaimer",
"text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
},
{
"category": "description",
"text": "cURL ist eine Client-Software, die das Austauschen von Dateien mittels mehrerer Protokolle wie z. B. HTTP oder FTP erlaubt.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein Angreifer kann mehrere Schwachstellen in cURL ausnutzen, um Sicherheitsvorkehrungen zu umgehen, und um Informationen offenzulegen.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Linux\n- UNIX",
"title": "Betroffene Betriebssysteme"
}
],
"publisher": {
"category": "other",
"contact_details": "csaf-provider@cert-bund.de",
"name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
"namespace": "https://www.bsi.bund.de"
},
"references": [
{
"category": "self",
"summary": "WID-SEC-W-2026-0690 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0690.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-0690 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0690"
},
{
"category": "external",
"summary": "Project curl Security Advisory vom 2026-03-10",
"url": "https://curl.se/docs/CVE-2026-1965.html"
},
{
"category": "external",
"summary": "Project curl Security Advisory vom 2026-03-10",
"url": "https://curl.se/docs/CVE-2026-3783.html"
},
{
"category": "external",
"summary": "Project curl Security Advisory vom 2026-03-10",
"url": "https://curl.se/docs/CVE-2026-3784.html"
},
{
"category": "external",
"summary": "Project curl Security Advisory vom 2026-03-10",
"url": "https://curl.se/docs/CVE-2026-3805.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8084-1 vom 2026-03-11",
"url": "https://ubuntu.com/security/notices/USN-8084-1"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:0879-1 vom 2026-03-12",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024686.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:0885-1 vom 2026-03-12",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024688.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8099-1 vom 2026-03-16",
"url": "https://ubuntu.com/security/notices/USN-8099-1"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:0903-1 vom 2026-03-17",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024702.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:0911-1 vom 2026-03-18",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024704.html"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:10371-1 vom 2026-03-18",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/7DVNZIFZZDWQ3BVLX73OCWI4IC6RV3ES/"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:20668-1 vom 2026-03-18",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024745.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:0921-1 vom 2026-03-18",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024714.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:20722-1 vom 2026-03-19",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024765.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:20760-1 vom 2026-03-24",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024826.html"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:20404-1 vom 2026-03-28",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/Y2C3VRKRHI7PGVKJEXRDQUEHQTJRXAYT/"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:20918-1 vom 2026-04-01",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025098.html"
},
{
"category": "external",
"summary": "Fedora Security Advisory FEDORA-2026-F13D888B0F vom 2026-04-10",
"url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-f13d888b0f"
},
{
"category": "external",
"summary": "Fedora Security Advisory FEDORA-2026-66DB242036 vom 2026-04-14",
"url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-66db242036"
},
{
"category": "external",
"summary": "Fedora Security Advisory FEDORA-2026-907BBF2A13 vom 2026-04-14",
"url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-907bbf2a13"
},
{
"category": "external",
"summary": "Meinberg Security Advisory MBGSA-2026.03 vom 2026-04-15",
"url": "http://news.meinberg.de/668/"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:21452-1 vom 2026-05-04",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025804.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:1717-1 vom 2026-05-06",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025886.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:1940-1 vom 2026-05-18",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/026115.html"
}
],
"source_lang": "en-US",
"title": "cURL: Mehrere Schwachstellen",
"tracking": {
"current_release_date": "2026-05-18T22:00:00.000+00:00",
"generator": {
"date": "2026-05-19T08:36:59.580+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.5.0"
}
},
"id": "WID-SEC-W-2026-0690",
"initial_release_date": "2026-03-10T23:00:00.000+00:00",
"revision_history": [
{
"date": "2026-03-10T23:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-03-11T23:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von European Union Vulnerability Database und Ubuntu aufgenommen"
},
{
"date": "2026-03-12T23:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-03-16T23:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-03-17T23:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-03-18T23:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von openSUSE und SUSE aufgenommen"
},
{
"date": "2026-03-19T23:00:00.000+00:00",
"number": "7",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-03-24T23:00:00.000+00:00",
"number": "8",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-03-29T22:00:00.000+00:00",
"number": "9",
"summary": "Neue Updates von openSUSE aufgenommen"
},
{
"date": "2026-04-01T22:00:00.000+00:00",
"number": "10",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-04-12T22:00:00.000+00:00",
"number": "11",
"summary": "Neue Updates von Fedora aufgenommen"
},
{
"date": "2026-04-13T22:00:00.000+00:00",
"number": "12",
"summary": "Neue Updates von Fedora aufgenommen"
},
{
"date": "2026-04-14T22:00:00.000+00:00",
"number": "13",
"summary": "Neue Updates von Fedora aufgenommen"
},
{
"date": "2026-05-03T22:00:00.000+00:00",
"number": "14",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-05-06T22:00:00.000+00:00",
"number": "15",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-05-18T22:00:00.000+00:00",
"number": "16",
"summary": "Neue Updates von SUSE aufgenommen"
}
],
"status": "final",
"version": "16"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Fedora Linux",
"product": {
"name": "Fedora Linux",
"product_id": "74185",
"product_identification_helper": {
"cpe": "cpe:/o:fedoraproject:fedora:-"
}
}
}
],
"category": "vendor",
"name": "Fedora"
},
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c7.10.009",
"product": {
"name": "Meinberg LANTIME \u003c7.10.009",
"product_id": "T052850"
}
},
{
"category": "product_version",
"name": "7.10.009",
"product": {
"name": "Meinberg LANTIME 7.10.009",
"product_id": "T052850-fixed",
"product_identification_helper": {
"cpe": "cpe:/h:meinberg:lantime:7.10.009"
}
}
}
],
"category": "product_name",
"name": "LANTIME"
}
],
"category": "vendor",
"name": "Meinberg"
},
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c8.19.0",
"product": {
"name": "Open Source cURL \u003c8.19.0",
"product_id": "T051630"
}
},
{
"category": "product_version",
"name": "8.19.0",
"product": {
"name": "Open Source cURL 8.19.0",
"product_id": "T051630-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:curl:curl:8.19.0"
}
}
}
],
"category": "product_name",
"name": "cURL"
}
],
"category": "vendor",
"name": "Open Source"
},
{
"branches": [
{
"category": "product_name",
"name": "SUSE Linux",
"product": {
"name": "SUSE Linux",
"product_id": "T002207",
"product_identification_helper": {
"cpe": "cpe:/o:suse:suse_linux:-"
}
}
},
{
"category": "product_name",
"name": "SUSE openSUSE",
"product": {
"name": "SUSE openSUSE",
"product_id": "T027843",
"product_identification_helper": {
"cpe": "cpe:/o:suse:opensuse:-"
}
}
}
],
"category": "vendor",
"name": "SUSE"
},
{
"branches": [
{
"category": "product_name",
"name": "Ubuntu Linux",
"product": {
"name": "Ubuntu Linux",
"product_id": "T000126",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:-"
}
}
}
],
"category": "vendor",
"name": "Ubuntu"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-1965",
"product_status": {
"known_affected": [
"T002207",
"T000126",
"T027843",
"T052850",
"T051630",
"74185"
]
},
"release_date": "2026-03-10T23:00:00.000+00:00",
"title": "CVE-2026-1965"
},
{
"cve": "CVE-2026-3783",
"product_status": {
"known_affected": [
"T002207",
"T000126",
"T027843",
"T052850",
"T051630",
"74185"
]
},
"release_date": "2026-03-10T23:00:00.000+00:00",
"title": "CVE-2026-3783"
},
{
"cve": "CVE-2026-3784",
"product_status": {
"known_affected": [
"T002207",
"T000126",
"T027843",
"T052850",
"T051630",
"74185"
]
},
"release_date": "2026-03-10T23:00:00.000+00:00",
"title": "CVE-2026-3784"
},
{
"cve": "CVE-2026-3805",
"product_status": {
"known_affected": [
"T002207",
"T000126",
"T027843",
"T052850",
"T051630",
"74185"
]
},
"release_date": "2026-03-10T23:00:00.000+00:00",
"title": "CVE-2026-3805"
}
]
}
CVE-2026-1965 (GCVE-0-2026-1965)
Vulnerability from cvelistv5 – Published: 2026-03-11 10:08 – Updated: 2026-09-15 06:02
VLAI
EPSS
VEX
Title
bad reuse of HTTP Negotiate connection
Summary
libcurl can in some circumstances reuse the wrong connection when asked to do
an Negotiate-authenticated HTTP or HTTPS request.
libcurl features a pool of recent connections so that subsequent requests can
reuse an existing connection to avoid overhead.
When reusing a connection a range of criterion must first be met. Due to a
logical error in the code, a request that was issued by an application could
wrongfully reuse an existing connection to the same server that was
authenticated using different credentials. One underlying reason being that
Negotiate sometimes authenticates *connections* and not *requests*, contrary
to how HTTP is designed to work.
An application that allows Negotiate authentication to a server (that responds
wanting Negotiate) with `user1:password1` and then does another operation to
the same server also using Negotiate but with `user2:password2` (while the
previous connection is still alive) - the second request wrongly reused the
same connection and since it then sees that the Negotiate negotiation is
already made, it sends the request over that connection thinking it uses
the user2 credentials when it is in fact still using the connection
authenticated for user1...
The set of authentication methods to use is set with `CURLOPT_HTTPAUTH`.
Applications can disable libcurl's reuse of connections and thus mitigate this
problem, by using one of the following libcurl options to alter how
connections are or are not reused: `CURLOPT_FRESH_CONNECT`,
`CURLOPT_MAXCONNECTS` and `CURLMOPT_MAX_HOST_CONNECTIONS` (if using the
curl_multi API).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-11 14:31 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
2 references
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| curl | curl |
Affected:
7.10.6 , < 8.14.2
(semver)
Affected: 8.15.0 , < 8.16.1 (semver) Affected: 8.17.0 , < 8.19.0 (semver) |
|
| curl | curl |
Affected:
e56ae1426cb7a0a4a427cf8d6099a821fdaae428 , < f1a39f221d57354990e3eeeddc3404aede2aff70
(git)
|
|
| curl | curl |
Affected:
8.18.0
Affected: 8.17.0 Affected: 8.16.0 Affected: 8.15.0 Affected: 8.14.1 Affected: 8.14.0 Affected: 8.13.0 Affected: 8.12.1 Affected: 8.12.0 Affected: 8.11.1 Affected: 8.11.0 Affected: 8.10.1 Affected: 8.10.0 Affected: 8.9.1 Affected: 8.9.0 Affected: 8.8.0 Affected: 8.7.1 Affected: 8.7.0 Affected: 8.6.0 Affected: 8.5.0 Affected: 8.4.0 Affected: 8.3.0 Affected: 8.2.1 Affected: 8.2.0 Affected: 8.1.2 Affected: 8.1.1 Affected: 8.1.0 Affected: 8.0.1 Affected: 8.0.0 Affected: 7.88.1 Affected: 7.88.0 Affected: 7.87.0 Affected: 7.86.0 Affected: 7.85.0 Affected: 7.84.0 Affected: 7.83.1 Affected: 7.83.0 Affected: 7.82.0 Affected: 7.81.0 Affected: 7.80.0 Affected: 7.79.1 Affected: 7.79.0 Affected: 7.78.0 Affected: 7.77.0 Affected: 7.76.1 Affected: 7.76.0 Affected: 7.75.0 Affected: 7.74.0 Affected: 7.73.0 Affected: 7.72.0 Affected: 7.71.1 Affected: 7.71.0 Affected: 7.70.0 Affected: 7.69.1 Affected: 7.69.0 Affected: 7.68.0 Affected: 7.67.0 Affected: 7.66.0 Affected: 7.65.3 Affected: 7.65.2 Affected: 7.65.1 Affected: 7.65.0 Affected: 7.64.1 Affected: 7.64.0 Affected: 7.63.0 Affected: 7.62.0 Affected: 7.61.1 Affected: 7.61.0 Affected: 7.60.0 Affected: 7.59.0 Affected: 7.58.0 Affected: 7.57.0 Affected: 7.56.1 Affected: 7.56.0 Affected: 7.55.1 Affected: 7.55.0 Affected: 7.54.1 Affected: 7.54.0 Affected: 7.53.1 Affected: 7.53.0 Affected: 7.52.1 Affected: 7.52.0 Affected: 7.51.0 Affected: 7.50.3 Affected: 7.50.2 Affected: 7.50.1 Affected: 7.50.0 Affected: 7.49.1 Affected: 7.49.0 Affected: 7.48.0 Affected: 7.47.1 Affected: 7.47.0 Affected: 7.46.0 Affected: 7.45.0 Affected: 7.44.0 Affected: 7.43.0 Affected: 7.42.1 Affected: 7.42.0 Affected: 7.41.0 Affected: 7.40.0 Affected: 7.39.0 Affected: 7.38.0 Affected: 7.37.1 Affected: 7.37.0 Affected: 7.36.0 Affected: 7.35.0 Affected: 7.34.0 Affected: 7.33.0 Affected: 7.32.0 Affected: 7.31.0 Affected: 7.30.0 Affected: 7.29.0 Affected: 7.28.1 Affected: 7.28.0 Affected: 7.27.0 Affected: 7.26.0 Affected: 7.25.0 Affected: 7.24.0 Affected: 7.23.1 Affected: 7.23.0 Affected: 7.22.0 Affected: 7.21.7 Affected: 7.21.6 Affected: 7.21.5 Affected: 7.21.4 Affected: 7.21.3 Affected: 7.21.2 Affected: 7.21.1 Affected: 7.21.0 Affected: 7.20.1 Affected: 7.20.0 Affected: 7.19.7 Affected: 7.19.6 Affected: 7.19.5 Affected: 7.19.4 Affected: 7.19.3 Affected: 7.19.2 Affected: 7.19.1 Affected: 7.19.0 Affected: 7.18.2 Affected: 7.18.1 Affected: 7.18.0 Affected: 7.17.1 Affected: 7.17.0 Affected: 7.16.4 Affected: 7.16.3 Affected: 7.16.2 Affected: 7.16.1 Affected: 7.16.0 Affected: 7.15.5 Affected: 7.15.4 Affected: 7.15.3 Affected: 7.15.2 Affected: 7.15.1 Affected: 7.15.0 Affected: 7.14.1 Affected: 7.14.0 Affected: 7.13.2 Affected: 7.13.1 Affected: 7.13.0 Affected: 7.12.3 Affected: 7.12.2 Affected: 7.12.1 Affected: 7.12.0 Affected: 7.11.2 Affected: 7.11.1 Affected: 7.11.0 Affected: 7.10.8 Affected: 7.10.7 Affected: 7.10.6 |
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-1965",
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{
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{
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{
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],
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}
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{
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"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
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"value": "libcurl can in some circumstances reuse the wrong connection when asked to do\nan Negotiate-authenticated HTTP or HTTPS request.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criterion must first be met. Due to a\nlogical error in the code, a request that was issued by an application could\nwrongfully reuse an existing connection to the same server that was\nauthenticated using different credentials. One underlying reason being that\nNegotiate sometimes authenticates *connections* and not *requests*, contrary\nto how HTTP is designed to work.\n\nAn application that allows Negotiate authentication to a server (that responds\nwanting Negotiate) with `user1:password1` and then does another operation to\nthe same server also using Negotiate but with `user2:password2` (while the\nprevious connection is still alive) - the second request wrongly reused the\nsame connection and since it then sees that the Negotiate negotiation is\nalready made, it sends the request over that connection thinking it uses\nthe user2 credentials when it is in fact still using the connection\nauthenticated for user1...\n\nThe set of authentication methods to use is set with `CURLOPT_HTTPAUTH`.\n\nApplications can disable libcurl\u0027s reuse of connections and thus mitigate this\nproblem, by using one of the following libcurl options to alter how\nconnections are or are not reused: `CURLOPT_FRESH_CONNECT`,\n`CURLOPT_MAXCONNECTS` and `CURLMOPT_MAX_HOST_CONNECTIONS` (if using the\ncurl_multi API)."
}
],
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]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:02:49.175Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
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"url": "https://curl.se/docs/CVE-2026-1965.json"
},
{
"url": "https://curl.se/docs/CVE-2026-1965.html"
}
],
"title": "bad reuse of HTTP Negotiate connection",
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},
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],
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"type": "finder"
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{
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"type": "remediation developer"
}
],
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},
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"www": "https://curl.se/docs/CVE-2026-1965.html"
},
"details": "libcurl can in some circumstances reuse the wrong connection when asked to do\nan Negotiate-authenticated HTTP or HTTPS request.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criterion must first be met. Due to a\nlogical error in the code, a request that was issued by an application could\nwrongfully reuse an existing connection to the same server that was\nauthenticated using different credentials. One underlying reason being that\nNegotiate sometimes authenticates *connections* and not *requests*, contrary\nto how HTTP is designed to work.\n\nAn application that allows Negotiate authentication to a server (that responds\nwanting Negotiate) with `user1:password1` and then does another operation to\nthe same server also using Negotiate but with `user2:password2` (while the\nprevious connection is still alive) - the second request wrongly reused the\nsame connection and since it then sees that the Negotiate negotiation is\nalready made, it sends the request over that connection thinking it uses\nthe user2 credentials when it is in fact still using the connection\nauthenticated for user1...\n\nThe set of authentication methods to use is set with `CURLOPT_HTTPAUTH`.\n\nApplications can disable libcurl\u0027s reuse of connections and thus mitigate this\nproblem, by using one of the following libcurl options to alter how\nconnections are or are not reused: `CURLOPT_FRESH_CONNECT`,\n`CURLOPT_MAXCONNECTS` and `CURLMOPT_MAX_HOST_CONNECTIONS` (if using the\ncurl_multi API).",
"id": "CURL-CVE-2026-1965",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-03-11T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "bad reuse of HTTP Negotiate connection"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-1965",
"datePublished": "2026-03-11T10:08:52.431Z",
"dateReserved": "2026-02-05T11:00:50.882Z",
"dateUpdated": "2026-09-15T06:02:49.175Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-3783 (GCVE-0-2026-3783)
Vulnerability from cvelistv5 – Published: 2026-03-11 10:09 – Updated: 2026-09-15 06:02
VLAI
EPSS
VEX
Title
token leak with redirect and netrc
Summary
When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer
performs a redirect to a second URL, curl could leak that token to the second
hostname under some circumstances.
If the hostname that the first request is redirected to has information in the
used .netrc file, with either of the `machine` or `default` keywords, curl
would pass on the bearer token set for the first host also to the second one.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-11 14:25 UTC
CWE
- CWE-522 - Insufficiently Protected Credentials
Assigner
References
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| curl | curl |
Affected:
7.33.0 , < 8.14.2
(semver)
Affected: 8.15.0 , < 8.16.1 (semver) Affected: 8.17.0 , < 8.19.0 (semver) |
|
| curl | curl |
Affected:
06c1bea72faabb6fad4b7ef818aafaa336c9a7aa , < e3d7401a32a46516c9e5ee877e613e62ed35bddc
(git)
|
|
| curl | curl |
Affected:
8.18.0
Affected: 8.17.0 Affected: 8.16.0 Affected: 8.15.0 Affected: 8.14.1 Affected: 8.14.0 Affected: 8.13.0 Affected: 8.12.1 Affected: 8.12.0 Affected: 8.11.1 Affected: 8.11.0 Affected: 8.10.1 Affected: 8.10.0 Affected: 8.9.1 Affected: 8.9.0 Affected: 8.8.0 Affected: 8.7.1 Affected: 8.7.0 Affected: 8.6.0 Affected: 8.5.0 Affected: 8.4.0 Affected: 8.3.0 Affected: 8.2.1 Affected: 8.2.0 Affected: 8.1.2 Affected: 8.1.1 Affected: 8.1.0 Affected: 8.0.1 Affected: 8.0.0 Affected: 7.88.1 Affected: 7.88.0 Affected: 7.87.0 Affected: 7.86.0 Affected: 7.85.0 Affected: 7.84.0 Affected: 7.83.1 Affected: 7.83.0 Affected: 7.82.0 Affected: 7.81.0 Affected: 7.80.0 Affected: 7.79.1 Affected: 7.79.0 Affected: 7.78.0 Affected: 7.77.0 Affected: 7.76.1 Affected: 7.76.0 Affected: 7.75.0 Affected: 7.74.0 Affected: 7.73.0 Affected: 7.72.0 Affected: 7.71.1 Affected: 7.71.0 Affected: 7.70.0 Affected: 7.69.1 Affected: 7.69.0 Affected: 7.68.0 Affected: 7.67.0 Affected: 7.66.0 Affected: 7.65.3 Affected: 7.65.2 Affected: 7.65.1 Affected: 7.65.0 Affected: 7.64.1 Affected: 7.64.0 Affected: 7.63.0 Affected: 7.62.0 Affected: 7.61.1 Affected: 7.61.0 Affected: 7.60.0 Affected: 7.59.0 Affected: 7.58.0 Affected: 7.57.0 Affected: 7.56.1 Affected: 7.56.0 Affected: 7.55.1 Affected: 7.55.0 Affected: 7.54.1 Affected: 7.54.0 Affected: 7.53.1 Affected: 7.53.0 Affected: 7.52.1 Affected: 7.52.0 Affected: 7.51.0 Affected: 7.50.3 Affected: 7.50.2 Affected: 7.50.1 Affected: 7.50.0 Affected: 7.49.1 Affected: 7.49.0 Affected: 7.48.0 Affected: 7.47.1 Affected: 7.47.0 Affected: 7.46.0 Affected: 7.45.0 Affected: 7.44.0 Affected: 7.43.0 Affected: 7.42.1 Affected: 7.42.0 Affected: 7.41.0 Affected: 7.40.0 Affected: 7.39.0 Affected: 7.38.0 Affected: 7.37.1 Affected: 7.37.0 Affected: 7.36.0 Affected: 7.35.0 Affected: 7.34.0 Affected: 7.33.0 |
{
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"title": "CVE Program Container"
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"baseScore": 5.3,
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"confidentialityImpact": "LOW",
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"scope": "UNCHANGED",
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{
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"status": "affected",
"version": "7.77.0"
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"status": "affected",
"version": "7.76.1"
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}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "spectreglobalsec on hackerone"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer\nperforms a redirect to a second URL, curl could leak that token to the second\nhostname under some circumstances.\n\nIf the hostname that the first request is redirected to has information in the\nused .netrc file, with either of the `machine` or `default` keywords, curl\nwould pass on the bearer token set for the first host also to the second one."
}
],
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"description": "Insufficiently Protected Credentials",
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}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:02:52.569Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-3783.json"
},
{
"url": "https://curl.se/docs/CVE-2026-3783.html"
},
{
"url": "https://hackerone.com/reports/3583983"
}
],
"title": "token leak with redirect and netrc",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.33.0"
},
{
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},
{
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{
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{
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}
],
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"type": "GIT"
}
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"7.85.0",
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"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
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"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0"
]
}
],
"aliases": [
"CVE-2026-3783"
],
"credits": [
{
"name": "spectreglobalsec on hackerone",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Insufficiently Protected Credentials",
"id": "CWE-522"
},
"URL": "https://curl.se/docs/CVE-2026-3783.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3583983",
"last_affected": "8.18.0",
"package": "curl",
"severity": "Medium",
"www": "https://curl.se/docs/CVE-2026-3783.html"
},
"details": "When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer\nperforms a redirect to a second URL, curl could leak that token to the second\nhostname under some circumstances.\n\nIf the hostname that the first request is redirected to has information in the\nused .netrc file, with either of the `machine` or `default` keywords, curl\nwould pass on the bearer token set for the first host also to the second one.",
"id": "CURL-CVE-2026-3783",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-03-11T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "token leak with redirect and netrc"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-3783",
"datePublished": "2026-03-11T10:09:08.746Z",
"dateReserved": "2026-03-08T05:09:09.891Z",
"dateUpdated": "2026-09-15T06:02:52.569Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-3784 (GCVE-0-2026-3784)
Vulnerability from cvelistv5 – Published: 2026-03-11 10:09 – Updated: 2026-09-15 06:02
VLAI
EPSS
VEX
Title
wrong proxy connection reuse with credentials
Summary
curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a
server, even if the new request uses different credentials for the HTTP proxy.
The proper behavior is to create or use a separate connection.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-11 15:48 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| curl | curl |
Affected:
7.7.0 , < 8.14.2
(semver)
Affected: 8.15.0 , < 8.16.1 (semver) Affected: 8.17.0 , < 8.19.0 (semver) |
|
| curl | curl |
Affected:
a1d6ad26100bc493c7b04f1301b1634b7f5aa8b4 , < 5f13a7645e565c5c1a06f3ef86e97afb856fb364
(git)
|
|
| curl | curl |
Affected:
8.18.0
Affected: 8.17.0 Affected: 8.16.0 Affected: 8.15.0 Affected: 8.14.1 Affected: 8.14.0 Affected: 8.13.0 Affected: 8.12.1 Affected: 8.12.0 Affected: 8.11.1 Affected: 8.11.0 Affected: 8.10.1 Affected: 8.10.0 Affected: 8.9.1 Affected: 8.9.0 Affected: 8.8.0 Affected: 8.7.1 Affected: 8.7.0 Affected: 8.6.0 Affected: 8.5.0 Affected: 8.4.0 Affected: 8.3.0 Affected: 8.2.1 Affected: 8.2.0 Affected: 8.1.2 Affected: 8.1.1 Affected: 8.1.0 Affected: 8.0.1 Affected: 8.0.0 Affected: 7.88.1 Affected: 7.88.0 Affected: 7.87.0 Affected: 7.86.0 Affected: 7.85.0 Affected: 7.84.0 Affected: 7.83.1 Affected: 7.83.0 Affected: 7.82.0 Affected: 7.81.0 Affected: 7.80.0 Affected: 7.79.1 Affected: 7.79.0 Affected: 7.78.0 Affected: 7.77.0 Affected: 7.76.1 Affected: 7.76.0 Affected: 7.75.0 Affected: 7.74.0 Affected: 7.73.0 Affected: 7.72.0 Affected: 7.71.1 Affected: 7.71.0 Affected: 7.70.0 Affected: 7.69.1 Affected: 7.69.0 Affected: 7.68.0 Affected: 7.67.0 Affected: 7.66.0 Affected: 7.65.3 Affected: 7.65.2 Affected: 7.65.1 Affected: 7.65.0 Affected: 7.64.1 Affected: 7.64.0 Affected: 7.63.0 Affected: 7.62.0 Affected: 7.61.1 Affected: 7.61.0 Affected: 7.60.0 Affected: 7.59.0 Affected: 7.58.0 Affected: 7.57.0 Affected: 7.56.1 Affected: 7.56.0 Affected: 7.55.1 Affected: 7.55.0 Affected: 7.54.1 Affected: 7.54.0 Affected: 7.53.1 Affected: 7.53.0 Affected: 7.52.1 Affected: 7.52.0 Affected: 7.51.0 Affected: 7.50.3 Affected: 7.50.2 Affected: 7.50.1 Affected: 7.50.0 Affected: 7.49.1 Affected: 7.49.0 Affected: 7.48.0 Affected: 7.47.1 Affected: 7.47.0 Affected: 7.46.0 Affected: 7.45.0 Affected: 7.44.0 Affected: 7.43.0 Affected: 7.42.1 Affected: 7.42.0 Affected: 7.41.0 Affected: 7.40.0 Affected: 7.39.0 Affected: 7.38.0 Affected: 7.37.1 Affected: 7.37.0 Affected: 7.36.0 Affected: 7.35.0 Affected: 7.34.0 Affected: 7.33.0 Affected: 7.32.0 Affected: 7.31.0 Affected: 7.30.0 Affected: 7.29.0 Affected: 7.28.1 Affected: 7.28.0 Affected: 7.27.0 Affected: 7.26.0 Affected: 7.25.0 Affected: 7.24.0 Affected: 7.23.1 Affected: 7.23.0 Affected: 7.22.0 Affected: 7.21.7 Affected: 7.21.6 Affected: 7.21.5 Affected: 7.21.4 Affected: 7.21.3 Affected: 7.21.2 Affected: 7.21.1 Affected: 7.21.0 Affected: 7.20.1 Affected: 7.20.0 Affected: 7.19.7 Affected: 7.19.6 Affected: 7.19.5 Affected: 7.19.4 Affected: 7.19.3 Affected: 7.19.2 Affected: 7.19.1 Affected: 7.19.0 Affected: 7.18.2 Affected: 7.18.1 Affected: 7.18.0 Affected: 7.17.1 Affected: 7.17.0 Affected: 7.16.4 Affected: 7.16.3 Affected: 7.16.2 Affected: 7.16.1 Affected: 7.16.0 Affected: 7.15.5 Affected: 7.15.4 Affected: 7.15.3 Affected: 7.15.2 Affected: 7.15.1 Affected: 7.15.0 Affected: 7.14.1 Affected: 7.14.0 Affected: 7.13.2 Affected: 7.13.1 Affected: 7.13.0 Affected: 7.12.3 Affected: 7.12.2 Affected: 7.12.1 Affected: 7.12.0 Affected: 7.11.2 Affected: 7.11.1 Affected: 7.11.0 Affected: 7.10.8 Affected: 7.10.7 Affected: 7.10.6 Affected: 7.10.5 Affected: 7.10.4 Affected: 7.10.3 Affected: 7.10.2 Affected: 7.10.1 Affected: 7.10 Affected: 7.9.8 Affected: 7.9.7 Affected: 7.9.6 Affected: 7.9.5 Affected: 7.9.4 Affected: 7.9.3 Affected: 7.9.2 Affected: 7.9.1 Affected: 7.9 Affected: 7.8.1 Affected: 7.8 Affected: 7.7.3 Affected: 7.7.2 Affected: 7.7.1 Affected: 7.7 |
|
| Siemens | RUGGEDCOM RST2428P |
Affected:
0 , < V4.0
(custom)
|
{
"containers": {
"adp": [
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"dateUpdated": "2026-03-11T10:16:32.844Z",
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"shortName": "CVE"
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"references": [
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"url": "http://www.openwall.com/lists/oss-security/2026/03/11/3"
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"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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"options": [
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},
{
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{
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"role": "CISA Coordinator",
"timestamp": "2026-03-11T15:48:38.785522Z",
"version": "2.0.3"
},
"type": "ssvc"
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}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-305",
"description": "CWE-305 Authentication Bypass by Primary Weakness",
"lang": "en",
"type": "CWE"
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}
],
"providerMetadata": {
"dateUpdated": "2026-03-11T15:48:41.725Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"defaultStatus": "unknown",
"product": "RUGGEDCOM RST2428P",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V4.0",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-02T13:00:43.860Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-253495.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
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"product": "curl",
"vendor": "curl",
"versions": [
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"status": "affected",
"version": "7.7.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.19.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
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"status": "affected",
"version": "a1d6ad26100bc493c7b04f1301b1634b7f5aa8b4",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
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{
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"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
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{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
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{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
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{
"status": "affected",
"version": "7.76.1"
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{
"status": "affected",
"version": "7.76.0"
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{
"status": "affected",
"version": "7.75.0"
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{
"status": "affected",
"version": "7.74.0"
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{
"status": "affected",
"version": "7.73.0"
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{
"status": "affected",
"version": "7.72.0"
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{
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{
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"version": "7.71.0"
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{
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"version": "7.70.0"
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{
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"version": "7.69.0"
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{
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{
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{
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{
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"version": "7.63.0"
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{
"status": "affected",
"version": "7.62.0"
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{
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"version": "7.61.1"
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{
"status": "affected",
"version": "7.61.0"
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{
"status": "affected",
"version": "7.60.0"
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{
"status": "affected",
"version": "7.59.0"
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{
"status": "affected",
"version": "7.58.0"
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{
"status": "affected",
"version": "7.57.0"
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{
"status": "affected",
"version": "7.56.1"
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{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
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{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
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{
"status": "affected",
"version": "7.54.0"
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{
"status": "affected",
"version": "7.53.1"
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{
"status": "affected",
"version": "7.53.0"
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{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
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{
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"version": "7.51.0"
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{
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"version": "7.50.3"
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{
"status": "affected",
"version": "7.50.2"
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{
"status": "affected",
"version": "7.50.1"
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{
"status": "affected",
"version": "7.50.0"
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{
"status": "affected",
"version": "7.49.1"
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{
"status": "affected",
"version": "7.49.0"
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{
"status": "affected",
"version": "7.48.0"
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{
"status": "affected",
"version": "7.47.1"
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{
"status": "affected",
"version": "7.47.0"
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{
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"version": "7.46.0"
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{
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"version": "7.45.0"
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{
"status": "affected",
"version": "7.44.0"
},
{
"status": "affected",
"version": "7.43.0"
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{
"status": "affected",
"version": "7.42.1"
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{
"status": "affected",
"version": "7.42.0"
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{
"status": "affected",
"version": "7.41.0"
},
{
"status": "affected",
"version": "7.40.0"
},
{
"status": "affected",
"version": "7.39.0"
},
{
"status": "affected",
"version": "7.38.0"
},
{
"status": "affected",
"version": "7.37.1"
},
{
"status": "affected",
"version": "7.37.0"
},
{
"status": "affected",
"version": "7.36.0"
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{
"status": "affected",
"version": "7.35.0"
},
{
"status": "affected",
"version": "7.34.0"
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{
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"version": "7.33.0"
},
{
"status": "affected",
"version": "7.32.0"
},
{
"status": "affected",
"version": "7.31.0"
},
{
"status": "affected",
"version": "7.30.0"
},
{
"status": "affected",
"version": "7.29.0"
},
{
"status": "affected",
"version": "7.28.1"
},
{
"status": "affected",
"version": "7.28.0"
},
{
"status": "affected",
"version": "7.27.0"
},
{
"status": "affected",
"version": "7.26.0"
},
{
"status": "affected",
"version": "7.25.0"
},
{
"status": "affected",
"version": "7.24.0"
},
{
"status": "affected",
"version": "7.23.1"
},
{
"status": "affected",
"version": "7.23.0"
},
{
"status": "affected",
"version": "7.22.0"
},
{
"status": "affected",
"version": "7.21.7"
},
{
"status": "affected",
"version": "7.21.6"
},
{
"status": "affected",
"version": "7.21.5"
},
{
"status": "affected",
"version": "7.21.4"
},
{
"status": "affected",
"version": "7.21.3"
},
{
"status": "affected",
"version": "7.21.2"
},
{
"status": "affected",
"version": "7.21.1"
},
{
"status": "affected",
"version": "7.21.0"
},
{
"status": "affected",
"version": "7.20.1"
},
{
"status": "affected",
"version": "7.20.0"
},
{
"status": "affected",
"version": "7.19.7"
},
{
"status": "affected",
"version": "7.19.6"
},
{
"status": "affected",
"version": "7.19.5"
},
{
"status": "affected",
"version": "7.19.4"
},
{
"status": "affected",
"version": "7.19.3"
},
{
"status": "affected",
"version": "7.19.2"
},
{
"status": "affected",
"version": "7.19.1"
},
{
"status": "affected",
"version": "7.19.0"
},
{
"status": "affected",
"version": "7.18.2"
},
{
"status": "affected",
"version": "7.18.1"
},
{
"status": "affected",
"version": "7.18.0"
},
{
"status": "affected",
"version": "7.17.1"
},
{
"status": "affected",
"version": "7.17.0"
},
{
"status": "affected",
"version": "7.16.4"
},
{
"status": "affected",
"version": "7.16.3"
},
{
"status": "affected",
"version": "7.16.2"
},
{
"status": "affected",
"version": "7.16.1"
},
{
"status": "affected",
"version": "7.16.0"
},
{
"status": "affected",
"version": "7.15.5"
},
{
"status": "affected",
"version": "7.15.4"
},
{
"status": "affected",
"version": "7.15.3"
},
{
"status": "affected",
"version": "7.15.2"
},
{
"status": "affected",
"version": "7.15.1"
},
{
"status": "affected",
"version": "7.15.0"
},
{
"status": "affected",
"version": "7.14.1"
},
{
"status": "affected",
"version": "7.14.0"
},
{
"status": "affected",
"version": "7.13.2"
},
{
"status": "affected",
"version": "7.13.1"
},
{
"status": "affected",
"version": "7.13.0"
},
{
"status": "affected",
"version": "7.12.3"
},
{
"status": "affected",
"version": "7.12.2"
},
{
"status": "affected",
"version": "7.12.1"
},
{
"status": "affected",
"version": "7.12.0"
},
{
"status": "affected",
"version": "7.11.2"
},
{
"status": "affected",
"version": "7.11.1"
},
{
"status": "affected",
"version": "7.11.0"
},
{
"status": "affected",
"version": "7.10.8"
},
{
"status": "affected",
"version": "7.10.7"
},
{
"status": "affected",
"version": "7.10.6"
},
{
"status": "affected",
"version": "7.10.5"
},
{
"status": "affected",
"version": "7.10.4"
},
{
"status": "affected",
"version": "7.10.3"
},
{
"status": "affected",
"version": "7.10.2"
},
{
"status": "affected",
"version": "7.10.1"
},
{
"status": "affected",
"version": "7.10"
},
{
"status": "affected",
"version": "7.9.8"
},
{
"status": "affected",
"version": "7.9.7"
},
{
"status": "affected",
"version": "7.9.6"
},
{
"status": "affected",
"version": "7.9.5"
},
{
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CVE-2026-3805 (GCVE-0-2026-3805)
Vulnerability from cvelistv5 – Published: 2026-03-11 10:09 – Updated: 2026-09-15 06:02
VLAI
EPSS
VEX
Title
use after free in SMB connection reuse
Summary
When doing a second SMB request to the same host again, curl would wrongly use
a data pointer pointing into already freed memory.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-11 15:45 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| curl | curl |
Affected:
8.13.0 , < 8.14.2
(semver)
Affected: 8.15.0 , < 8.16.1 (semver) Affected: 8.17.0 , < 8.19.0 (semver) |
|
| curl | curl |
Affected:
f4831daa9b2a97e8a2921d6b62cc4dfdd0d8646e , < e090be9f73a7a71459ef678c7cc4b1f75e3ea883
(git)
|
|
| curl | curl |
Affected:
8.18.0
Affected: 8.17.0 Affected: 8.16.0 Affected: 8.15.0 Affected: 8.14.1 Affected: 8.14.0 Affected: 8.13.0 |
Credits
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"baseScore": 7.5,
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}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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