A logic error in the env utility of uutils coreutils causes a failure to correctly parse command-line arguments when utilizing the -S (split-string) option. In GNU env, backslashes within single quotes are treated literally (with the exceptions of \\ and \'). However, the uutils implementation incorrectly attempts to validate these sequences, resulting in an "invalid sequence" error and an immediate process termination with an exit status of 125 when encountering valid but unrecognized sequences like \a or \x. This divergence from GNU behavior breaks compatibility for automated scripts and administrative workflows that rely on standard split-string semantics, leading to a local denial of service for those operations.

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History

Wed, 22 Apr 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 22 Apr 2026 16:30:00 +0000

Type Values Removed Values Added
Description A logic error in the env utility of uutils coreutils causes a failure to correctly parse command-line arguments when utilizing the -S (split-string) option. In GNU env, backslashes within single quotes are treated literally (with the exceptions of \\ and \'). However, the uutils implementation incorrectly attempts to validate these sequences, resulting in an "invalid sequence" error and an immediate process termination with an exit status of 125 when encountering valid but unrecognized sequences like \a or \x. This divergence from GNU behavior breaks compatibility for automated scripts and administrative workflows that rely on standard split-string semantics, leading to a local denial of service for those operations.
Title uutils coreutils env Local Denial of Service via Improper Handling of Backslashes in Split-String Mode
Weaknesses CWE-20
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: canonical

Published:

Updated: 2026-04-22T17:01:09.526Z

Reserved: 2026-04-02T12:58:56.089Z

Link: CVE-2026-35377

cve-icon Vulnrichment

Updated: 2026-04-22T17:01:00.614Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-22T17:16:42.577

Modified: 2026-04-22T21:23:52.620

Link: CVE-2026-35377

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-22T18:15:15Z

Weaknesses