CVE-2021-3934
OS Command Injection in ohmyzsh/ohmyzsh
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
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-hfqf No 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
Affected products
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.
In short
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 49th percentile. No source names a fixed version.