{"cve":"CVE-2026-59883","nvd":{"published":"2026-07-08T17:17:26.737","modified":"2026-07-13T14:01:39.700","status":"Analyzed","description":"Guzzle is an extensible PHP HTTP client. Prior to 7.12.3, CookieJar did not restrict cookies scoped to IP-address or bare-numeric Domain values to the exact host that set them, because SetCookie::matchesDomain() applied ordinary suffix matching to domains such as 192.168.0.1, [::1], or 1, allowing cross-host cookie disclosure, cookie injection, or session fixation. This issue is fixed in version 7.12.3.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-346","CWE-384"],"references":["https://github.com/guzzle/guzzle/commit/b9944c161b12d9ee9c9334cfc5b9659ecd7451f8","https://github.com/guzzle/guzzle/pull/3694","https://github.com/guzzle/guzzle/releases/tag/7.12.3","https://github.com/guzzle/guzzle/security/advisories/GHSA-g446-98w2-8p5w"],"products":["guzzlephp:guzzle"],"source":"nvd","synced_at":"2026-10-19T22:42:16.820116992+00:00"},"epss":{"cve":"CVE-2026-59883","score":0.00167,"percentile":0.05984,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-g446-98w2-8p5w","url":"https://osv.dev/vulnerability/GHSA-g446-98w2-8p5w","summary":"Guzzle: Cookie Disclosure and Injection via IP-Address Domains","modified":"2026-09-10T03:50:51.915343345Z","packages":[{"ecosystem":"Packagist","name":"guzzlehttp/guzzle","purl":"pkg:composer/guzzlehttp/guzzle","ranges":["<7.12.3"],"fixed":["7.12.3"]}]}],"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."]}