CVE-2021-3934
CVE-2021-3934 is a high-severity vulnerability in Planetargon Oh My Zsh with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.1
- EPSS exploit prediction: 1% (44th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Planetargon Oh My Zsh
- Published:
- Last modified:
Description
ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command
Frequently asked questions
- What is CVE-2021-3934?
- ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command
- How severe is CVE-2021-3934?
- CVE-2021-3934 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-3934 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-3934?
- CVE-2021-3934 affects Planetargon Oh My Zsh. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-3934?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-3934 published?
- CVE-2021-3934 was published on 2021-11-12 and last updated on 2026-06-17.
References
- https://github.com/ohmyzsh/ohmyzsh/commit/6cb41b70a6d04301fd50cd5862ecd705ba226c0e
- https://huntr.dev/bounties/ad2b5c3f-a3ce-4407-94dc-354c723310ce
Affected products (1)
- cpe:2.3:a:planetargon:oh_my_zsh:*:*:*:*:*:*:*:*
More vulnerabilities in Planetargon Oh My Zsh
- CVE-2021-3769 — High (CVSS 7.5): # Vulnerability in `pygmalion`, `pygmalion-virtualenv` and `refined` themes **Description**: these themes use `print…
- CVE-2021-3727 — High (CVSS 7.5): # Vulnerability in `rand-quote` and `hitokoto` plugins **Description**: the `rand-quote` and `hitokoto` fetch quotes…
- CVE-2021-3726 — High (CVSS 7.5): # Vulnerability in `title` function **Description**: the `title` function defined in `lib/termsupport.zsh` uses `print`…
- CVE-2021-3725 — High (CVSS 7.5): Vulnerability in dirhistory plugin Description: the widgets that go back and forward in the directory history,…
All CVEs affecting Planetargon Oh My Zsh →
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