CVE-2021-3934
OS Command Injection in ohmyzsh/ohmyzsh
CVE-2021-3934 is a high vulnerability (CVSS 7.8) in Ohmyzsh Ohmyzsh/ohmyzsh, published November 12, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.62%, the 50th percentile. No source names a fixed version.
- Severity
- 7.8 HighCVSS 3.0, CVE List
- Exploit chance
- 0.62%EPSS, 50th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
Affected products
What each source reports
CVE List Score used
OS Command Injection in ohmyzsh/ohmyzsh
ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command
- Record
CVE-2021-3934- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-78
- Updated
- 2026-11-02
EUVDEUVD-2021-27148
ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command
- Record
EUVD-2021-27148- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-gv4m-8hpx-hfqfNo score
ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command
ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command
- Record
GHSA-gv4m-8hpx-hfqf- Weakness
- CWE-78
- Updated
- 2026-11-02
NVD
ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command
- Record
CVE-2021-3934- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 5.1 Medium
AV:N/AC:H/Au:N/C:P/I:P/A:P - Weakness
- CWE-78
- Updated
- 2026-11-02
OSV
ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command
- Record
CVE-2021-3934- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.