{"cve":"CVE-2022-31043","nvd":{"published":"2022-06-10T00:15:07.757","modified":"2026-06-17T04:44:40.427","status":"Modified","description":"Guzzle is an open source PHP HTTP client. In affected versions `Authorization` headers on requests are sensitive information. On making a request using the `https` scheme to a server which responds with a redirect to a URI with the `http` scheme, we should not forward the `Authorization` header on. This is much the same as to how we don't forward on the header if the host changes. Prior to this fix, `https` to `http` downgrades did not result in the `Authorization` header being removed, only changes to the host. Affected Guzzle 7 users should upgrade to Guzzle 7.4.4 as soon as possible. Affected users using any earlier series of Guzzle should upgrade to Guzzle 6.5.7 or 7.4.4. Users unable to upgrade may consider an alternative approach which would be to use their own redirect middleware. Alternately users may simply disable redirects all together if redirects are not expected or required.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-212","CWE-200"],"references":["https://github.com/guzzle/guzzle/commit/e3ff079b22820c2029d4c2a87796b6a0b8716ad8","https://github.com/guzzle/guzzle/security/advisories/GHSA-w248-ffj2-4v5q","https://www.debian.org/security/2022/dsa-5246","https://www.drupal.org/sa-core-2022-011","https://www.rfc-editor.org/rfc/rfc9110.html#name-redirection-3xx"],"products":["debian:debian_linux","drupal:drupal","guzzlephp:guzzle"],"source":"nvd","synced_at":"2026-10-19T21:32:39.174919249+00:00"},"epss":{"cve":"CVE-2022-31043","score":0.01992,"percentile":0.80679,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-f2wf-25xc-69c9","url":"https://osv.dev/vulnerability/GHSA-f2wf-25xc-69c9","summary":"Failure to strip the Cookie header on change in host or HTTP downgrade","modified":"2025-12-10T23:40:57.755467Z","packages":[{"ecosystem":"Packagist","name":"guzzlehttp/guzzle","purl":"pkg:composer/guzzlehttp/guzzle","ranges":[">=4.0.0 <6.5.7"],"fixed":["6.5.7"]},{"ecosystem":"Packagist","name":"guzzlehttp/guzzle","purl":"pkg:composer/guzzlehttp/guzzle","ranges":[">=7.0.0 <7.4.4"],"fixed":["7.4.4"]}]},{"id":"GHSA-w248-ffj2-4v5q","url":"https://osv.dev/vulnerability/GHSA-w248-ffj2-4v5q","summary":"Fix failure to strip Authorization header on HTTP downgrade","modified":"2025-12-10T23:40:57.755467Z","packages":[{"ecosystem":"Packagist","name":"guzzlehttp/guzzle","purl":"pkg:composer/guzzlehttp/guzzle","ranges":[">=4.0.0 <6.5.7"],"fixed":["6.5.7"]},{"ecosystem":"Packagist","name":"guzzlehttp/guzzle","purl":"pkg:composer/guzzlehttp/guzzle","ranges":[">=7.0.0 <7.4.4"],"fixed":["7.4.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}