AT_SECURE program buffer overflow via $ORIGIN processing (CVE-2026-95818) | HOL Guard CVE

Low · CVSS 3.6CVE-2026-95818

AT_SECURE program buffer overflow via $ORIGIN processing

Answer in brief

CVE-2026-95818 records a Low severity (CVSS 3.6) vulnerability in AT_SECURE program buffer overflow via $ORIGIN processing. The current sources do not mark it as known exploited. The current feed maps The GNU C Library/glibc (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 Sep 22, 2026Updated Sep 22, 2026Source checked Sep 22, 2026First seen by HOL Sep 22, 2026Material review Sep 22, 2026

Upstream Advisory

Key facts

Risk: Low · CVSS 3.6
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 3.6. 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 The GNU C Library/glibc (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
The GNU C Library/glibcgeneric	>=2.14 <2.45	2.45

Recommended response

Check inventory. Check lockfiles and deployed manifests for The GNU C Library/glibc.
Review the reported fix. Update The GNU C Library/glibc to 2.45 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 22, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 22, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 22, 2026

Sources and claim methodology

Upstream source description

A stack-based buffer overflow in the dynamic loader (ld.so) of the GNU C Library (glibc) versions 2.14 through 2.44 allows a local attacker to crash or corrupt the memory of setuid/setgid (AT_SECURE) programs. When such a program's DT_RPATH or DT_RUNPATH begins with $ORIGIN and is followed by NUL or '/' the loader both reads past the end of the path buffer and writes past the end of a stack-allocated internal buffer. The corrupted loader stack can lead to a loader crash (denial of service) and limited disclosure of process memory.

Quoted source text, attributed separately from HOL analysis.