{"id":"CVE-2021-29476","aliases":["GHSA-52qp-jpq7-6c54"],"url":"https://o3.security/vulnerability/CVE-2021-29476","summary":"Insecure Deserialization of untrusted data in rmccue/requests","details":"Requests is a HTTP library written in PHP. Requests mishandles deserialization in FilteredIterator. The issue has been patched and users of `Requests` 1.6.0, 1.6.1 and 1.7.0 should update to version 1.8.0.","published":"2021-04-27T21:15:08.107Z","modified":"2026-07-09T11:23:54.395447Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Packagist","name":"rmccue/requests","fixedVersion":"1.8.0"}],"fix":{"url":"https://github.com/rmccue/Requests/pull/421","label":"rmccue/Requests#421"},"references":[{"type":"ADVISORY","url":"https://github.com/WordPress/Requests/security/advisories/GHSA-52qp-jpq7-6c54"},{"type":"FIX","url":"https://github.com/rmccue/Requests/pull/421"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T11:23:54.395447Z"}}