{"id":"CVE-2026-25047","aliases":["GHSA-2733-6c58-pf27"],"url":"https://o3.security/vulnerability/CVE-2026-25047","summary":"deepHas vulnerable to Prototype Pollution via constructor.prototype","details":"deepHas provides a test for the existence of a nested object key and optionally returns that key. A prototype pollution vulnerability exists in version 1.0.7 of the deephas npm package that allows an attacker to modify global object behavior. This issue was fixed in version 1.0.8.","published":"2026-01-29T21:39:48.498Z","modified":"2026-08-12T03:51:20.207455872Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"npm","name":"deephas","fixedVersion":"1.0.8"}],"fix":{"url":"https://github.com/sharpred/deepHas/commit/8097fafd3776c613d8066546653e0d2c7b5fc465","label":"sharpred/deepHas@8097faf"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25047.json"},{"type":"ADVISORY","url":"https://github.com/sharpred/deepHas/security/advisories/GHSA-2733-6c58-pf27"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25047"},{"type":"FIX","url":"https://github.com/sharpred/deepHas/commit/8097fafd3776c613d8066546653e0d2c7b5fc465"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:20.207455872Z"}}