FKIE_CVE-2026-35366

Vulnerability from fkie_nvd - Published: 2026-04-22 17:16 - Updated: 2026-05-04 18:52
Severity ?
4.4 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Summary
The printenv utility in uutils coreutils fails to display environment variables containing invalid UTF-8 byte sequences. While POSIX permits arbitrary bytes in environment strings, the uutils implementation silently skips these entries rather than printing the raw bytes. This vulnerability allows malicious environment variables (e.g., adversarial LD_PRELOAD values) to evade inspection by administrators or security auditing tools, potentially allowing library injection or other environment-based attacks to go undetected.
References
security@ubuntu.comhttps://github.com/uutils/coreutils/issues/9701Exploit, Issue Tracking
security@ubuntu.comhttps://github.com/uutils/coreutils/pull/9728Issue Tracking, Patch
security@ubuntu.comhttps://github.com/uutils/coreutils/releases/tag/0.6.0Release Notes
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/uutils/coreutils/issues/9701Exploit, Issue Tracking
Impacted products
Vendor Product Version
uutils coreutils *
To clipboard 

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  "lastModified": "2026-05-04T18:52:42.390",
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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