Gcc-toolset-15-gcc: gcc: gcc-toolset-16: gcc: denial of service via use-after-free in binary heap erase_if (CVE-2026-102010) | HOL Guard CVE

High · CVSS 7.0CVE-2026-102010

Gcc-toolset-15-gcc: gcc: gcc-toolset-16: gcc: denial of service via use-after-free in binary heap erase_if

Answer in brief

CVE-2026-102010 records a High severity (CVSS 7.0) vulnerability in Gcc-toolset-15-gcc: gcc: gcc-toolset-16: gcc: denial of service via use-after-free in binary heap erase_if. The current sources do not mark it as known exploited. The current feed maps Red Hat/compat-gcc-295 (generic), Red Hat/compat-gcc-296 (generic), Red Hat/compat-gcc-32 (generic), Red Hat/compat-gcc-34 (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 Sep 28, 2026Updated Sep 28, 2026Source checked Sep 29, 2026First seen by HOL Sep 28, 2026Material review Sep 28, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.0
Exploitation: Not marked as known exploited
Affected software: 15 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

CVSS is 7.0. 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/compat-gcc-295 (generic), Red Hat/compat-gcc-296 (generic), Red Hat/compat-gcc-32 (generic), Red Hat/compat-gcc-34 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Red Hat/compat-gcc-295generic	*	Not reported
Red Hat/compat-gcc-296generic	*	Not reported
Red Hat/compat-gcc-32generic	*	Not reported
Red Hat/compat-gcc-34generic	*	Not reported
Red Hat/compat-gcc-44generic	*	Not reported
Red Hat/gccgeneric	*	Not reported
Red Hat/gcc13generic	*	Not reported
Red Hat/gcc-toolset-14-gccgeneric	*	Not reported
Red Hat/gcc-toolset-15-gccgeneric	*	Not reported
Red Hat/gcc-toolset-16generic	*	Not reported
Red Hat/gcc-toolset-16-gccgeneric	*	Not reported
Red Hat/mingw-gccgeneric	*	Not reported
Red Hat/openshift/ose-rhel-coreos-8generic	*	Not reported
Red Hat/openshift/ose-rhel-coreos-9generic	*	Not reported
Red Hat/rteval-loadsgeneric	*	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Red Hat/compat-gcc-295, Red Hat/compat-gcc-296, Red Hat/compat-gcc-32.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 28, 2026

Sources and claim methodology

Upstream source description

A flaw was found in GCC. When an application calls the erase_if function on a binary heap priority queue in libstdc++, the library reallocates storage but fails to update its internal entry pointer. An attacker capable of triggering this operation can exploit this use-after-free condition, leading to a Denial of Service (DoS) via an application crash or potential memory corruption.

Quoted source text, attributed separately from HOL analysis.