CVE-2026-6368 PUBLISHED

wordexp with WRDE_APPEND can return or use invalid memory

Assigner: glibc
Reserved: 15.04.2026 Published: 10.08.2026 Updated: 10.08.2026

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.

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 2.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	Low	Confidentiality	Low
Attack Complexity	High	Integrity	Low	Integrity	Low
Attack Requirements	Present	Availability	Low	Availability	Low
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	glibc
Product	glibc
Versions	Default: unaffected affected from 1.93-260 to 2.43 (excl.)

Credits

shinobu finder

References

Problem Types

CWE-908 Use of uninitialized resource CWE

Impacts

CAPEC-129 Pointer Manipulation