CVE-2026-6368

wordexp with WRDE_APPEND can return or use invalid memory

Published Aug 10, 2026 CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Ubuntu USN Ubuntu USN USN-8737-1 GNU C Library vulnerabilities
Ubuntu USN Ubuntu USN USN-8737-2 GNU C Library vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-1341
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Type Values Removed Values Added
First Time appeared Gnu
Gnu glibc
Vendors & Products Gnu
Gnu glibc
Type Values Removed Values Added
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.
Title wordexp with WRDE_APPEND can return or use invalid memory
Weaknesses CWE-908
References
Metrics cvssV4_0

{'score': 2.1, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/S:P/AU:Y/U:Green'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
glibc
Published
Updated
Aug 12, 2026, 6:01 PM
Reserved
Apr 15, 2026, 3:07 PM
Status
Awaiting Analysis
Published
Aug 10, 2026, 7:17 PM
Modified
Sep 3, 2026, 4:43 PM
Severity
Moderate
Public date
Aug 10, 2026, 6:40 PM