CVE-2021-42139
Deno before 0.107.0 allows Code Injection via an untrusted YAML file in certain configurations.
Deno Standard Modules before 0.107.0 allows Code Injection via an untrusted YAML file in certain configurations.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Deno Standard Modules before 0.107.0 allows Code Injection via an untrusted YAML file in certain configurations.
- Record
CVE-2021-42139- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-94
- Updated
- 2026-11-02
CVE List No score
Deno Standard Modules before 0.107.0 allows Code Injection via an untrusted YAML file in certain configurations.
- Record
CVE-2021-42139- Updated
- 2026-11-02
EUVDEUVD-2021-29122 No score
Deno Standard Modules before 0.107.0 allows Code Injection via an untrusted YAML file in certain configurations.
- Record
EUVD-2021-29122- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5p33-p2v6-hj8p No score
Deno before 0.107.0 allows Code Injection via an untrusted YAML file in certain configurations.
Deno before 0.107.0 allows Code Injection via an untrusted YAML file in certain configurations.
- Record
GHSA-5p33-p2v6-hj8p- Weakness
- CWE-94
- Updated
- 2026-11-02
OSV
Deno Standard Modules before 0.107.0 allows Code Injection via an untrusted YAML file in certain configurations.
- Record
CVE-2021-42139- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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-2021-42139 is a critical vulnerability (CVSS 9.8) in Deno Standard Modules, published October 11, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.07%, the 81st percentile. No source names a fixed version.