CVE-2026-35370

uutils coreutils id Incorrect Access-Control Decisions via Misrepresented Group Membership

MEDIUM
4.4
CVSS Score
Published: April 22, 2026 at 04:08 PM UTC
Updated: October 26, 2026 at 09:10 PM UTC
1 product affected across 1 vendorCoreutils

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Severity
MEDIUM4.4
Exploit prediction
EPSS 0.1%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Issue TrackingExploit
Source: cverecord
https://github.com/uutils/coreutils/issues/10006

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.4MEDIUMcanonical
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-863

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