WID-SEC-W-2026-1023
Vulnerability from csaf_certbund - Published: 2026-04-08 22:00 - Updated: 2026-05-25 22:00Summary
libpng: Schwachstelle ermöglicht Offenlegung von Informationen
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: Die libpng ist die offizielle Referenzbibliothek für die Darstellung und Manipulation von Bildern im Portable Network Graphics (PNG) Format.
Angriff: Ein lokaler Angreifer kann eine Schwachstelle in libpng ausnutzen, um Informationen offenzulegen.
Betroffene Betriebssysteme: - Linux
- Sonstiges
- UNIX
- Windows
Affected products
Known affected
10 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Open Source libpng <1.6.57
Open Source / libpng
|
<1.6.57 | ||
|
Debian Linux
Debian
|
cpe:/o:debian:debian_linux:-
|
— | |
|
SUSE Linux
SUSE
|
cpe:/o:suse:suse_linux:-
|
— | |
|
Red Hat Enterprise Linux
Red Hat
|
cpe:/o:redhat:enterprise_linux:-
|
— | |
|
Ubuntu Linux
Ubuntu
|
cpe:/o:canonical:ubuntu_linux:-
|
— | |
|
SUSE openSUSE
SUSE
|
cpe:/o:suse:opensuse:-
|
— | |
|
Amazon Linux 2
Amazon
|
cpe:/o:amazon:linux_2:-
|
— | |
|
Microsoft Azure Linux azl3
Microsoft / Azure Linux
|
cpe:/o:microsoft:azure_linux:azl3
|
azl3 | |
|
Fedora Linux
Fedora
|
cpe:/o:fedoraproject:fedora:-
|
— | |
|
Open Source libpng Trunk <1.8.0
Open Source / libpng
|
Trunk <1.8.0 |
References
23 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": "Die libpng ist die offizielle Referenzbibliothek f\u00fcr die Darstellung und Manipulation von Bildern im Portable Network Graphics (PNG) Format.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein lokaler Angreifer kann eine Schwachstelle in libpng ausnutzen, um Informationen offenzulegen.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Linux\n- Sonstiges\n- UNIX\n- Windows",
"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-2026-1023 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1023.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-1023 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1023"
},
{
"category": "external",
"summary": "GitHub Security Advisory GHSA-6fr7-g8h7-v645 vom 2026-04-08",
"url": "https://github.com/pnggroup/libpng/security/advisories/GHSA-6fr7-g8h7-v645"
},
{
"category": "external",
"summary": "Microsoft Security Update Guide vom 2026-04-14",
"url": "https://msrc.microsoft.com/update-guide/"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:10564-1 vom 2026-04-17",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/W2IO45KINLPHGWR2RZWGQYIZQTCXI7AV/"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:1500-1 vom 2026-04-21",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025479.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:21239-1 vom 2026-04-22",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025556.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:21262-1 vom 2026-04-23",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025579.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:21251-1 vom 2026-04-23",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025587.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:1602-1 vom 2026-04-24",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025618.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:1601-1 vom 2026-04-24",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025619.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:21364-1 vom 2026-04-28",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025740.html"
},
{
"category": "external",
"summary": "Amazon Linux Security Advisory ALAS2-2026-3266 vom 2026-04-30",
"url": "https://alas.aws.amazon.com/AL2/ALAS2-2026-3266.html"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:10640-1 vom 2026-04-30",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/XIE7LM4AK2R45TAYTB7NKRDWE4D3RHTT/"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:13719 vom 2026-05-05",
"url": "https://access.redhat.com/errata/RHSA-2026:13719"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:1716-1 vom 2026-05-06",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025887.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8251-1 vom 2026-05-07",
"url": "https://ubuntu.com/security/notices/USN-8251-1"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-4573 vom 2026-05-09",
"url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00017.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DSA-6263 vom 2026-05-10",
"url": "https://lists.debian.org/debian-security-announce/2026/msg00174.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:2057-1 vom 2026-05-25",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/026269.html"
},
{
"category": "external",
"summary": "Fedora Security Advisory FEDORA-2026-A109A9AC2C vom 2026-05-26",
"url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-a109a9ac2c"
},
{
"category": "external",
"summary": "Fedora Security Advisory FEDORA-2026-9A678A08C8 vom 2026-05-26",
"url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-9a678a08c8"
},
{
"category": "external",
"summary": "Fedora Security Advisory FEDORA-2026-67C1138ED2 vom 2026-05-26",
"url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-67c1138ed2"
}
],
"source_lang": "en-US",
"title": "libpng: Schwachstelle erm\u00f6glicht Offenlegung von Informationen",
"tracking": {
"current_release_date": "2026-05-25T22:00:00.000+00:00",
"generator": {
"date": "2026-05-26T12:16:10.784+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.6.0"
}
},
"id": "WID-SEC-W-2026-1023",
"initial_release_date": "2026-04-08T22:00:00.000+00:00",
"revision_history": [
{
"date": "2026-04-08T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-04-09T22:00:00.000+00:00",
"number": "2",
"summary": "Referenz(en) aufgenommen: EUVD-2026-20897, 2456918"
},
{
"date": "2026-04-14T22:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates aufgenommen"
},
{
"date": "2026-04-19T22:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von openSUSE aufgenommen"
},
{
"date": "2026-04-20T22:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-04-22T22:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-04-23T22:00:00.000+00:00",
"number": "7",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-04-26T22:00:00.000+00:00",
"number": "8",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-04-28T22:00:00.000+00:00",
"number": "9",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-04-29T22:00:00.000+00:00",
"number": "10",
"summary": "Neue Updates von Amazon aufgenommen"
},
{
"date": "2026-05-03T22:00:00.000+00:00",
"number": "11",
"summary": "Neue Updates von openSUSE aufgenommen"
},
{
"date": "2026-05-05T22:00:00.000+00:00",
"number": "12",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-05-06T22:00:00.000+00:00",
"number": "13",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-05-07T22:00:00.000+00:00",
"number": "14",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-05-10T22:00:00.000+00:00",
"number": "15",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2026-05-25T22:00:00.000+00:00",
"number": "16",
"summary": "Neue Updates von SUSE und Fedora aufgenommen"
}
],
"status": "final",
"version": "16"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Amazon Linux 2",
"product": {
"name": "Amazon Linux 2",
"product_id": "398363",
"product_identification_helper": {
"cpe": "cpe:/o:amazon:linux_2:-"
}
}
}
],
"category": "vendor",
"name": "Amazon"
},
{
"branches": [
{
"category": "product_name",
"name": "Debian Linux",
"product": {
"name": "Debian Linux",
"product_id": "2951",
"product_identification_helper": {
"cpe": "cpe:/o:debian:debian_linux:-"
}
}
}
],
"category": "vendor",
"name": "Debian"
},
{
"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",
"name": "azl3",
"product": {
"name": "Microsoft Azure Linux azl3",
"product_id": "T049210",
"product_identification_helper": {
"cpe": "cpe:/o:microsoft:azure_linux:azl3"
}
}
}
],
"category": "product_name",
"name": "Azure Linux"
}
],
"category": "vendor",
"name": "Microsoft"
},
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c1.6.57",
"product": {
"name": "Open Source libpng \u003c1.6.57",
"product_id": "T052572"
}
},
{
"category": "product_version",
"name": "1.6.57",
"product": {
"name": "Open Source libpng 1.6.57",
"product_id": "T052572-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:libpng:libpng:1.6.57"
}
}
},
{
"category": "product_version_range",
"name": "Trunk \u003c1.8.0",
"product": {
"name": "Open Source libpng Trunk \u003c1.8.0",
"product_id": "T052573"
}
},
{
"category": "product_version",
"name": "Trunk 1.8.0",
"product": {
"name": "Open Source libpng Trunk 1.8.0",
"product_id": "T052573-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:libpng:libpng:trunk__1.8.0"
}
}
}
],
"category": "product_name",
"name": "libpng"
}
],
"category": "vendor",
"name": "Open Source"
},
{
"branches": [
{
"category": "product_name",
"name": "Red Hat Enterprise Linux",
"product": {
"name": "Red Hat Enterprise Linux",
"product_id": "67646",
"product_identification_helper": {
"cpe": "cpe:/o:redhat:enterprise_linux:-"
}
}
}
],
"category": "vendor",
"name": "Red Hat"
},
{
"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-2026-34757",
"product_status": {
"known_affected": [
"T052572",
"2951",
"T002207",
"67646",
"T000126",
"T027843",
"398363",
"T049210",
"74185",
"T052573"
]
},
"release_date": "2026-04-08T22:00:00.000+00:00",
"title": "CVE-2026-34757"
}
]
}
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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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