wordexp with WRDE_APPEND can return or use invalid memory (CVE-2026-6368) | HOL Guard CVE

Low · CVSS 2.1CVE-2026-6368

wordexp with WRDE_APPEND can return or use invalid memory

Answer in brief

CVE-2026-6368 records a Low severity (CVSS 2.1) vulnerability in wordexp with WRDE_APPEND can return or use invalid memory. The current sources do not mark it as known exploited. The current feed maps glibc/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 Aug 10, 2026Updated Sep 3, 2026Source checked Sep 24, 2026First seen by HOL Aug 10, 2026Material review Sep 3, 2026

Upstream Advisory

Key facts

Risk: Low · CVSS 2.1
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 2.1. 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 glibc/glibc (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
glibc/glibcgeneric	>=1.93-260 <2.43	2.43

Recommended response

Check inventory. Check lockfiles and deployed manifests for glibc/glibc.
Review the reported fix. Update glibc/glibc to 2.43 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 10, 2026

Sources and claim methodology

Upstream source description

Calling wordexp with WRDE_APPEND in the GNU C Library version 2.0 to version 2.43 can cause the interface to return invalid memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.

Quoted source text, attributed separately from HOL analysis.