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Vulnerability · Published Apr 22, 2026 · Assigned by canonical

CVE-2026-35367uutils coreutils nohup Information Disclosure via Insecure Default Output Permissions

Low 3.3

In plain English

A low-severity incorrect permission assignment 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 2% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.1%top 98.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

The nohup utility in uutils coreutils creates its default output file, nohup.out, without specifying explicit restricted permissions. This causes the file to inherit umask-based permissions, typically resulting in a world-readable file (0644). In multi-user environments, this allows any user on the system to read the captured stdout/stderr output of a command, potentially exposing sensitive information. This behavior diverges from GNU coreutils, which creates nohup.out with owner-only (0600) permissions.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12rust-coreutilsno fix listedDEBIAN-CVE-2026-35367
Debian:13rust-coreutilsno fix listedDEBIAN-CVE-2026-35367
Debian:14rust-coreutils0.9.0-1DEBIAN-CVE-2026-35367
Ubuntu:24.04:LTSrust-coreutilsno fix listedUBUNTU-CVE-2026-35367
Ubuntu:25.10rust-coreutilsno fix listedUBUNTU-CVE-2026-35367
Ubuntu:26.04:LTSrust-coreutilsno fix listedUBUNTU-CVE-2026-35367
Ubuntu:26.10rust-coreutilsno fix listedUBUNTU-CVE-2026-35367

Affected products (as reported)

VendorProductVersions
Uutils coreutils see references

Weakness: CWE-732 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References