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CVE-2026-18090

Gdk-pixbuf: gdk-pixbuf: heap out-of-bounds read in uncompress() via crafted icns rle block

Published: Sep 8, 2026Updated: Sep 8, 2026 Sources: CVE List NVDCWE-125
6.1MEDIUM
NVD MITRE
EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only
Self-Check
Not available

Description

A flaw was found in gdk-pixbuf. This vulnerability allows a remote attacker to cause a heap out-of-bounds read by providing a specially crafted Apple Icon Image (.icns) file. The uncompress() function, which handles RLE-encoded ICNS icon data, fails to validate the source buffer's boundaries during decompression. This can lead to a denial of service, where the application crashes, or to information disclosure, potentially revealing sensitive data from adjacent memory.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:LI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-125

Affected Products

Red Hat
commercial·US
Red Hat Enterprise Linux 10On-premOS
Operating Systems / linux-distro
and 4 more affected products View all →

Exploitability

Workaround Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
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References

https://access.redhat.com/security/cve/CVE-2026-18090
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2517751
bugzilla.redhat.com
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/308
gitlab.gnome.org

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