What’s Vulnerable › Vulnerabilities
CVE-2026-35370: uutils coreutils id Incorrect Access-Control Decisions via Misrepresented Group Membership
- Severity: medium (CVSS 4.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2026-04-22 · updated 2026-10-26
- Weakness: CWE-863
Description
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.
Affected products
- Uutils coreutils: all versions
References
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