CVE-2021-3934 json
OS Command Injection in ohmyzsh/ohmyzsh
published 2021-11-12 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-27148
- cvss
- 7.8
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
Summary
ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command
Patch / fix
- ohmyzsh ohmyzsh/ohmyzsh 6cb41b70a6d04301fd50cd5862ecd705ba226c0e
Exploit prediction
0.62% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.8 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 5.1 | AV:N/AC:H/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
References
-
github.com
/ohmyzsh/ohmyzsh/commit/6cb41b70a6d04301fd50cd5862ecd705ba226c0e
patch, third-party-advisory
-
huntr.dev
/bounties/ad2b5c3f-a3ce-4407-94dc-354c723310ce
permissions-required
Sources
- CVE List CVE-2021-3934
- NVD CVE-2021-3934
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.