CVE-2026-35370

The id utility in uutils coreutils miscalculates the groups= section of its output. The implementation uses a user's real GID instead of their effective GID to compute the group list, leading to potentially divergent output compared to GNU coreutils. Because many scripts and automated processes rely on the output of id to make security-critical access-control or permission decisions, this discrepancy can lead to unauthorized access or security misconfigurations.

CVSS 3.1

4.4CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS

0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-26)

CWE

CWE-863

Published

2026-04-22

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• uutils:coreutils

Packages (OSV)

References

• https://github.com/uutils/coreutils/issues/10006
• https://github.com/uutils/coreutils/issues/10006

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