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 v3 4.4 MEDIUM

4.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 2.5

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/uutils/coreutils/issues/10006	Exploit Issue Tracking
https://github.com/uutils/coreutils/issues/10006	Exploit Issue Tracking

Configurations

Configuration 1 (hide)

cpe:2.3:a:uutils:coreutils:-:*:*:*:*:rust:*:*

History

No history.

Information

Published : 2026-04-22 17:16

Updated : 2026-06-17 10:40

NVD link : CVE-2026-35370

Mitre link : CVE-2026-35370

CVE.ORG link : CVE-2026-35370

JSON object : View

Products Affected

uutils

coreutils

CWE

CWE-863

Incorrect Authorization

{"id": "CVE-2026-35370", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-35370", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-22T17:47:44.682826Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@ubuntu.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.4, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 1.8}]}, "affected": [{"source": "security@ubuntu.com", "affectedData": [{"repo": "https://github.com/uutils/coreutils", "vendor": "Uutils", "product": "coreutils", "platforms": ["Linux", "Unix", "macOS"], "packageName": "coreutils", "collectionURL": "https://github.com/uutils", "defaultStatus": "affected"}]}], "published": "2026-04-22T17:16:40.833", "references": [{"url": "https://github.com/uutils/coreutils/issues/10006", "tags": ["Exploit", "Issue Tracking"], "source": "security@ubuntu.com"}, {"url": "https://github.com/uutils/coreutils/issues/10006", "tags": ["Exploit", "Issue Tracking"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@ubuntu.com", "description": [{"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-06-17T10:40:28.613", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:uutils:coreutils:-:*:*:*:*:rust:*:*", "vulnerable": true, "matchCriteriaId": "4A9AF9E4-E17C-48AD-8051-B49998618839"}], "operator": "OR"}]}], "sourceIdentifier": "security@ubuntu.com"}