js-yaml is a JavaScript YAML parser and dumper. Prior to 3.15.1, 4.3.1, and 5.2.1, YAML11_SCHEMA support for the !!omap tag in src/tag/sequence/omap.ts uses omapTag.addItem() to perform a linear duplicate-key scan on every insertion, causin…
Exact source revision recorded 27 Oct 2026 15:15:33 UTC. It does not establish the source's current position. Latest evidence.
nvd · CVE-2026-59870
PublishedNVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Modified
Weakness classifications: CWE-407 · CWE-770
Original publisher date fields
published: 2026-07-08T16:16:33.580
lastModified: 2026-10-25T20:10:00.147
1 source CPE criteria · context only
- cpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:node.js:*:*
The original JSON retains the logical configuration operators, exclusions and version bounds.
No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.
Original source record · Cite this exact observation · Complete original publisher JSON