Public proof of concept

CVE-2026-5201

A public proof of concept exists; no exploitation attested.

Published2026-03-31
WeaknessCWE-122

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A flaw was found in the gdk-pixbuf library. This heap-based buffer overflow vulnerability occurs in the JPEG image loader due to improper validation of color component counts when processing a specially crafted JPEG image. A remote attacker can exploit this flaw without user interaction, for example, via thumbnail generation. Successful exploitation leads to application crashes and denial of service (DoS) conditions.

Timeline

dates in UTC

2026-03-3109:16CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-5201?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-5201?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Redhat enterprise linux

Branch	Affected	Fixed in	Source
7.0	= 7.0	no fix published	NVD
8.0	= 8.0	no fix published	NVD
9.0	= 9.0	no fix published	NVD
10.0	= 10.0	no fix published	NVD

Redhat enterprise linux server aus

Branch	Affected	Fixed in	Source
8.2	= 8.2	no fix published	NVD
8.4	= 8.4	no fix published	NVD

Gnome gdk-pixbuf

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

gdk-pixbuf2AlmaLinux:10all versions · fixed in 2.42.12-4.el10_1.5and 2 other packages
gdk-pixbuf2AlmaLinux:10all versions · fixed in 2.42.12-4.el10_2.5and 2 other packages
gdk-pixbuf2AlmaLinux:9all versions · fixed in 2.42.6-6.el9_7.1and 2 other packages
gdk-pixbuf2AlmaLinux:9all versions · fixed in 2.42.6-6.el9_8.1and 2 other packages
gdk-pixbuf2AlmaLinux:8all versions · fixed in 2.36.12-8.el8_10and 4 other packages

Full record on NVD

Fix

Advisories and patches

gitlab.gnome.orgVendor Advisory

Detection

read 2026-10-23 19:25 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedkagancapar/CVE-2026-5201

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionnone2026-03-31
OpenCVESSVC decisionnone—
CNACVSS 3.17.5read 2026-10-23
CNAweakness (CWE)CWE-122read 2026-10-23
FIRST EPSSEPSS score1.2 %2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2026-03-31
Last Modified: 2026-07-15
NVD status: Modified

Frequently asked questions

What is CVE-2026-5201?

Is CVE-2026-5201 actively exploited?

Active exploitation of CVE-2026-5201 has not been confirmed. Its EPSS score was 1.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-5201?

CVE-2026-5201 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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