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  4. CVE 2026 16768 gdk pixbuf out of bounds read in ico parser
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Back to active CVEs
Medium · CVSS 5.3CVE-2026-16768

Gdk-pixbuf: out-of-bounds read in ico parserCVE-2026-16768

Answer in brief

CVE-2026-16768 records a Medium severity (CVSS 5.3) vulnerability in Gdk-pixbuf: out-of-bounds read in ico parser. The current sources do not mark it as known exploited. The current feed maps GNOME/gdk-pixbuf (generic), Red Hat/gdk-pixbuf2 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 23, 2026Updated Nov 5, 2026Source checked Nov 5, 2026First seen by HOL Nov 5, 2026Material review Nov 5, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.3
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps GNOME/gdk-pixbuf (generic), Red Hat/gdk-pixbuf2 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
GNOME/gdk-pixbufgeneric*Not reported
Red Hat/gdk-pixbuf2generic*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for GNOME/gdk-pixbuf, Red Hat/gdk-pixbuf2.
  2. 2Review the reported fix. Source-reported workaround: To mitigate this vulnerability, if the application does not require support for ICO files, disable the gdk-pixbuf ICO loader to prevent the vulnerable module from being executed.

Evidence timeline and material changes

  1. Published upstream

    Jul 23, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 5, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
  • Source referencegitlab.gnome.org
Upstream source description

A flaw was found in gdk-pixbuf. When parsing a specially crafted ICO file with pixel values that exceed the defined palette range, an out-of-bounds read can occur due to improper bounds checking against the actual palette size. This vulnerability causes heap bytes to be interpreted as valid palette indices and rendered as RGB pixel values in the output image, allowing an attacker to extract heap content via the generated output, such as a thumbnail.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • FastNetMon: IPv6 Fragment header dereferenced without bounds check in shared packet parserAlso CWE-125
  • FastNetMon: Legacy pcap parse_packet() has no bounds checking, causing out-of-bounds read on truncated framesAlso CWE-125
  • FastNetMon: NetFlow v9 unbounded strlen() on interface-description field causes remote out-of-bounds readAlso CWE-125
  • FastNetMon: sFlow header_size field trusted as parser capture length causes remote out-of-bounds readAlso CWE-125

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-125
Source
CVE List V5
Source checked
Nov 5, 2026
References
3 linked sources
Open source record