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CERTFR-2026-AVI-0530
Vulnerability from certfr_avis - Published: 2026-05-05 - Updated: 2026-05-05
De multiples vulnérabilités ont été découvertes dans Apache HTTP Server. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Apache | HTTP Server | Apache HTTP Server versions antérieures à 2.4.67 |
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Apache HTTP Server versions ant\u00e9rieures \u00e0 2.4.67",
"product": {
"name": "HTTP Server",
"vendor": {
"name": "Apache",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-33007",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-33007"
},
{
"name": "CVE-2026-33857",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-33857"
},
{
"name": "CVE-2026-28780",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-28780"
},
{
"name": "CVE-2026-23918",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23918"
},
{
"name": "CVE-2026-24072",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-24072"
},
{
"name": "CVE-2026-29168",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-29168"
},
{
"name": "CVE-2026-29169",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-29169"
},
{
"name": "CVE-2026-34032",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-34032"
},
{
"name": "CVE-2026-33006",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-33006"
},
{
"name": "CVE-2026-34059",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-34059"
},
{
"name": "CVE-2026-33523",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-33523"
}
],
"initial_release_date": "2026-05-05T00:00:00",
"last_revision_date": "2026-05-05T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0530",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-05-05T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Apache HTTP Server. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, une \u00e9l\u00e9vation de privil\u00e8ges et un d\u00e9ni de service \u00e0 distance.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Apache HTTP Server",
"vendor_advisories": [
{
"published_at": "2026-05-04",
"title": "Bulletin de s\u00e9curit\u00e9 Apache HTTP Server CHANGES_2.4.67",
"url": "https://downloads.apache.org/httpd/CHANGES_2.4.67"
}
]
}
CVE-2026-24072 (GCVE-0-2026-24072)
Vulnerability from cvelistv5 – Published: 2026-05-04 12:37 – Updated: 2026-05-05 03:56
VLAI?
EPSS
Title
Apache HTTP Server: mod_rewrite elevation of privileges via ap_expr
Summary
An escalation of privilege bug in various modules in Apache HTTP 2.4.66 and earlier allows local .htaccess authors to read files with the privileges of the httpd user.
Users are recommended to upgrade to version 2.4.67, which fixes this issue.
Severity ?
No CVSS data available.
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
0 , ≤ 2.4.66
(semver)
|
Credits
y7syeu
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CVE-2026-28780 (GCVE-0-2026-28780)
Vulnerability from cvelistv5 – Published: 2026-05-05 21:29 – Updated: 2026-05-06 15:50
VLAI?
EPSS
Title
Apache HTTP Server: buffer overflow in mod_proxy_ajp via ajp_msg_check_header()
Summary
Heap-based Buffer Overflow vulnerability in mod_proxy_ajp of Apache HTTP Server.
If mod_proxy_ajp connects to a malicious AJP server this AJP server can send a malicious AJP message back to mod_proxy_ajp and cause it to write 4 attacker controlled bytes after the end of a heap based buffer.
This issue affects Apache HTTP Server: through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Severity ?
No CVSS data available.
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
0 , ≤ 2.4.66
(semver)
|
Credits
Andrew Lacambra
Elhanan Haenel
Tianshuo Han (<hantianshuo233@gmail.com>)
Tristan Madani
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CVE-2026-33006 (GCVE-0-2026-33006)
Vulnerability from cvelistv5 – Published: 2026-05-04 14:42 – Updated: 2026-05-04 18:23
VLAI?
EPSS
Title
Apache HTTP Server: mod_auth_digest timing attack
Summary
A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker.
Users are recommended to upgrade to version 2.4.67, which fixes this issue.
Severity ?
No CVSS data available.
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
0 , ≤ 2.4.66
(semver)
|
Credits
Nitescu Lucian
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CVE-2026-23918 (GCVE-0-2026-23918)
Vulnerability from cvelistv5 – Published: 2026-05-04 14:44 – Updated: 2026-05-05 03:56
VLAI?
EPSS
Title
Apache HTTP Server: http2: double free and possible RCE on early reset
Summary
Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol.
This issue affects Apache HTTP Server: 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Severity ?
No CVSS data available.
CWE
- CWE-415 - Double Free
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.66
(semver)
|
Credits
Bartlomiej Dmitruk, striga.ai
Stanislaw Strzalkowski, isec.pl
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CVE-2026-34032 (GCVE-0-2026-34032)
Vulnerability from cvelistv5 – Published: 2026-05-04 12:54 – Updated: 2026-05-04 17:32
VLAI?
EPSS
Title
Apache HTTP Server: mod_proxy_ajp: Heap Buffer Over-Read Due to Missing Null-Termination Check (ajp_msg_get_string)
Summary
Improper Null Termination, Out-of-bounds Read vulnerability in Apache HTTP Server.
This issue affects Apache HTTP Server: through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Severity ?
No CVSS data available.
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
0 , ≤ 2.4.66
(semver)
|
Credits
Tianshuo Han (<hantianshuo233@gmail.com>)
Jérôme Djouder
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CVE-2026-34059 (GCVE-0-2026-34059)
Vulnerability from cvelistv5 – Published: 2026-05-04 12:39 – Updated: 2026-05-04 17:32
VLAI?
EPSS
Title
Apache HTTP Server: mod_proxy_ajp: Heap Over-Read and memory disclosure in ajp_parse_data()
Summary
Buffer Over-read vulnerability in Apache HTTP Server.
This issue affects Apache HTTP Server: through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Severity ?
No CVSS data available.
CWE
- CWE-126 - Buffer Over-read
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
0 , ≤ 2.4.66
(semver)
|
Credits
Elhanan Haenel
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CVE-2026-29169 (GCVE-0-2026-29169)
Vulnerability from cvelistv5 – Published: 2026-05-04 14:48 – Updated: 2026-05-05 20:23
VLAI?
EPSS
Title
Apache HTTP Server: mod_dav_lock indirect lock crash
Summary
A NULL pointer dereference in mod_dav_lock in Apache HTTP Server 2.4.66 and earlier may allow an attacker to crash the server with a malicious request.mod_dav_lock is not used internally by mod_dav or mod_dav_fs.
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Users are recommended to upgrade to version 2.4.66, which fixes this issue, or remove mod_dav_lock.
Severity ?
No CVSS data available.
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
0 , ≤ 2.4.66
(semver)
|
Credits
Pavel Kohout, Aisle Research, Aisle.com
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CVE-2026-33523 (GCVE-0-2026-33523)
Vulnerability from cvelistv5 – Published: 2026-05-04 14:40 – Updated: 2026-05-04 17:32
VLAI?
EPSS
Title
Apache HTTP Server: multiple modules: HTTP response splitting forwarding malicious status line
Summary
HTTP response splitting vulnerability in multiple Apache HTTP Server modules with untrusted or compromised backend servers.
This issue affects Apache HTTP Server: from through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Severity ?
No CVSS data available.
CWE
- CWE-443 - HTTP response splitting
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.0 , ≤ 2.4.66
(semver)
|
Credits
Haruki Oyama (Waseda University)
Merih Mengisteab
Dawit Jeong
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CVE-2026-33857 (GCVE-0-2026-33857)
Vulnerability from cvelistv5 – Published: 2026-05-04 13:07 – Updated: 2026-05-04 17:32
VLAI?
EPSS
Title
Apache HTTP Server: Off-by-one OOB reads in AJP getter functions
Summary
Out-of-bounds Read vulnerability in mod_proxy_ajp of
Apache HTTP Server.
This issue affects Apache HTTP Server: through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Severity ?
No CVSS data available.
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
0 , ≤ 2.4.66
(semver)
|
Credits
Elhanan Haenel
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CVE-2026-33007 (GCVE-0-2026-33007)
Vulnerability from cvelistv5 – Published: 2026-05-04 14:41 – Updated: 2026-05-05 15:07
VLAI?
EPSS
Title
Apache HTTP Server: mod_authn_socache crash
Summary
A NULL pointer dereference in the mod_authn_socache in Apache HTTP Server 2.4.66 and earlier allows an unauthenticated remote user to crash a child process in a caching forward proxy configuration.
Users are recommended to upgrade to version 2.4.67, which fixes this issue.
Severity ?
No CVSS data available.
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.0 , ≤ 2.4.66
(semver)
|
Credits
Pavel Kohout, Aisle Research, Aisle.com
Arkadi Vainbrand
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CVE-2026-29168 (GCVE-0-2026-29168)
Vulnerability from cvelistv5 – Published: 2026-05-05 13:10 – Updated: 2026-05-05 16:31
VLAI?
EPSS
Title
Apache HTTP Server: mod_md unrestricted OCSP response
Summary
Allocation of Resources Without Limits or Throttling vulnerability in Apache HTTP Server's mod_md via OCSP response data.
This issue affects Apache HTTP Server: from 2.4.30 through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Severity ?
No CVSS data available.
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.30 , ≤ 2.4.66
(semver)
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* |
Credits
Pavel Kohout, Aisle Research, Aisle.com
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Loading…
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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