CVE-2014-2906

Severity: high (CVSS 7.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-01-28 · updated 2026-06-17
Weakness: CWE-362

Description

The psub function in fish (aka fish-shell) 1.16.0 before 2.1.1 does not properly create temporary files, which allows local users to execute arbitrary commands via a temporary file with a predictable name.

Affected products

fish-shell: from 1.16.0 before 2.1.1 — fixed in 2.1.1

How to fix

Upgrade to a fixed version: fish-shell 2.1.1. Check the vendor advisory for mitigations.

References

http://www.openwall.com/lists/oss-security/2014/04/28/4
https://github.com/fish-shell/fish-shell/issues/1437
https://github.com/fish-shell/fish-shell/releases/tag/2.1.1
http://www.openwall.com/lists/oss-security/2014/04/28/4
https://github.com/fish-shell/fish-shell/issues/1437
https://github.com/fish-shell/fish-shell/releases/tag/2.1.1

Get alerted when CVE-2014-2906 or the next vulnerability affects your stack