OS Command Injection in ohmyzsh/ohmyzsh

published 2021-11-30 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-27005

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 64%
public exploits: 0; none known

Vulnerability in dirhistory plugin Description: the widgets that go back and forward in the directory history, triggered by pressing Alt-Left and Alt-Right, use functions that unsafely execute eval on directory names. If you cd into a directory with a carefully-crafted name, then press Alt-Left, the system is subject to command injection. Impacted areas: - Functions pop_past and pop_future in dirhistory plugin.

Patch / fix

fixed in 1 links 1

ohmyzsh ohmyzsh/ohmyzsh 06fc5fb

github.com/ohmyzsh/ohmyzsh@06fc5fb commit

Exploit prediction

1.05% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

ohmyzsh ohmyzsh/ohmyzsh

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command
CWE-94 Improper Control of Generation of Code

References

github.com /ohmyzsh/ohmyzsh/commit/06fc5fb
patch, third-party-advisory

Sources

CVE List CVE-2021-3725
NVD CVE-2021-3725

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary