{"apiVersion":"1.0","identifier":"CVE-2026-76833","description":"@cgauge/yaml npm package contains an arbitrary code execution vulnerability that allows attackers to execute arbitrary JavaScript by embedding a custom !js YAML tag whose construct callback unconditionally calls eval() on attacker-supplied string values during document parsing. Any application parsing untrusted YAML input with this library exposes full Node.js runtime authority, including environment variable access, filesystem read/write, network access, and subprocess execution, with no safe-mode alternative or opt-out mechanism available.","publishedAt":"2026-08-20T14:18:00","lastModifiedAt":"2026-08-20T15:18:38","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-76833","cvssScore":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","epssProbability":0.00151,"riskScore":0.79,"affectedProduct":"@cgauge/yaml","affectedVersions":"unknown","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-76833","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-76833","en":"https://www.redsauce.net/en/cves/CVE-2026-76833","fr":"https://www.redsauce.net/fr/cves/CVE-2026-76833","pt":"https://www.redsauce.net/pt/cves/CVE-2026-76833","de":"https://www.redsauce.net/de/cves/CVE-2026-76833","sk":"https://www.redsauce.net/sk/cves/CVE-2026-76833","el":"https://www.redsauce.net/el/cves/CVE-2026-76833"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-76833"}}