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Back to active CVEs
Low · CVSS 3.7CVE-2026-0988

Glib: glib: denial of service via integer overflow in g_buffered_input_stream_peek()CVE-2026-0988

Answer in brief

CVE-2026-0988 records a Low severity (CVSS 3.7) vulnerability in Glib: glib: denial of service via integer overflow in g_buffered_input_stream_peek(). The current sources do not mark it as known exploited. The current feed maps Red Hat/bootc (generic), Red Hat/glib2 (generic), Red Hat/glycin-loaders (generic), Red Hat/librsvg2 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

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

Published Jan 21, 2026Updated Nov 6, 2026Source checked Nov 6, 2026First seen by HOL Nov 6, 2026Material review Nov 6, 2026
Upstream Advisory

Key facts

Risk
Low · CVSS 3.7
Exploitation
Not marked as known exploited
Affected software
8 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 3.7. 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 Red Hat/bootc (generic), Red Hat/glib2 (generic), Red Hat/glycin-loaders (generic), Red Hat/librsvg2 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Red Hat/bootcgeneric*Not reported
Red Hat/glib2generic*Not reported
Red Hat/glycin-loadersgeneric*Not reported
Red Hat/librsvg2generic*Not reported
Red Hat/loupegeneric*Not reported
Red Hat/mingw-glib2generic*Not reported
Red Hat/papersgeneric*Not reported
Red Hat/rpm-ostreegeneric*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Red Hat/bootc, Red Hat/glib2, Red Hat/glycin-loaders.
  2. 2Review the reported fix. Source-reported workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Evidence timeline and material changes

  1. Published upstream

    Jan 21, 2026

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

  2. Source modified

    Nov 6, 2026

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

  3. First seen by HOL

    Nov 6, 2026

Sources and claim methodology

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

A flaw was found in glib. Missing validation of offset and count parameters in the g_buffered_input_stream_peek() function can lead to an integer overflow during length calculation. When specially crafted values are provided, this overflow results in an incorrect size being passed to memcpy(), triggering a buffer overflow. This can cause application crashes, leading to a Denial of Service (DoS).

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Tool Poisoning
EPSS
Not reported
CWE IDs
CWE-190
Source
CVE List V5
Source checked
Nov 6, 2026
References
4 linked sources
Open source record