Log in Start free

Vulnerability · Published Apr 22, 2026 · Assigned by canonical

CVE-2026-35348uutils coreutils sort Local Denial of Service via Forced UTF-8 Parsing

Medium 5.5

In plain English

A medium-severity security flaw in coreutils from Uutils. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.1%top 97.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

The sort utility in uutils coreutils is vulnerable to a process panic when using the --files0-from option with inputs containing non-UTF-8 filenames. The implementation enforces UTF-8 encoding and utilizes expect(), causing an immediate crash when encountering valid but non-UTF-8 paths. This diverges from GNU sort, which treats filenames as raw bytes. A local attacker can exploit this to crash the utility and disrupt automated pipelines.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12rust-coreutilsno fix listedDEBIAN-CVE-2026-35348
Debian:13rust-coreutilsno fix listedDEBIAN-CVE-2026-35348
Debian:14rust-coreutils0.10.0-1DEBIAN-CVE-2026-35348
Ubuntu:24.04:LTSrust-coreutilsno fix listedUBUNTU-CVE-2026-35348
Ubuntu:25.10rust-coreutilsno fix listedUBUNTU-CVE-2026-35348
Ubuntu:26.04:LTSrust-coreutilsno fix listedUBUNTU-CVE-2026-35348
Ubuntu:26.10rust-coreutilsno fix listedUBUNTU-CVE-2026-35348

Affected products (as reported)

VendorProductVersions
Uutils coreutils see references

Weakness: CWE-248 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References