LOWCVSS v3.1 3.7Vulnerability
CVE-2026-122131
Joi 17.13.6 before 17.13.9 and 18.2.5 before 18.3.1 contains a prototype pollution vulnerability in lib/messages.js compile() and merge() that fails to reject a __proto__ language key. Attackers supplying untrusted message configuration via any().messages(), prefs, validate options or Joi.extend can replace the compiled messages prototype, altering or breaking validation error rendering and dependent logic.
Properties
- Severity
- LOW
- Nvd fetched at
- 2026-11-04T21:42:22.291815+00:00
- Cvss severity
- LOW
- Cvss score
- 3.7
- Retrieved at
- 2026-11-04T21:43:05+00:00
- Score
- 3.7
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-122131
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
- First seen by Signal
- 2026-11-04T21:38:26+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
- Published at
- 2026-11-04T21:18:08.710
- Last modified
- 2026-11-04T21:18:08.710
Related Entities (1)
HAS_WEAKNESS (1)
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