{"id":"CVE-2026-59883","state":"PUBLISHED","title":"Guzzle: Cookie Disclosure and Injection via IP-Address Domains","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.","publishedAt":"2026-07-08T15:56:03.689Z","updatedAt":"2026-07-09T13:49:43.875Z","severity":{"score":4.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["guzzle guzzle"],"affected":[{"vendor":"guzzle","product":"guzzle","versions":[{"version":"< 7.12.3","status":"affected"}]}],"references":["https://github.com/guzzle/guzzle/security/advisories/GHSA-g446-98w2-8p5w","https://github.com/guzzle/guzzle/pull/3694","https://github.com/guzzle/guzzle/commit/b9944c161b12d9ee9c9334cfc5b9659ecd7451f8","https://github.com/guzzle/guzzle/releases/tag/7.12.3"],"weaknesses":["CWE-346","CWE-384"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/59xxx/CVE-2026-59883.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-59883","state":"PUBLISHED","datePublished":"2026-07-08T15:56:03.689Z","dateUpdated":"2026-07-09T13:49:43.875Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-07T16:40:07.982Z"},"containers":{"cna":{"title":"Guzzle: Cookie Disclosure and Injection via IP-Address Domains","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"guzzle","product":"guzzle","versions":[{"version":"< 7.12.3","status":"affected"}]}],"references":[{"url":"https://github.com/guzzle/guzzle/security/advisories/GHSA-g446-98w2-8p5w","name":"https://github.com/guzzle/guzzle/security/advisories/GHSA-g446-98w2-8p5w","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/guzzle/guzzle/pull/3694","name":"https://github.com/guzzle/guzzle/pull/3694","tags":["x_refsource_MISC"]},{"url":"https://github.com/guzzle/guzzle/commit/b9944c161b12d9ee9c9334cfc5b9659ecd7451f8","name":"https://github.com/guzzle/guzzle/commit/b9944c161b12d9ee9c9334cfc5b9659ecd7451f8","tags":["x_refsource_MISC"]},{"url":"https://github.com/guzzle/guzzle/releases/tag/7.12.3","name":"https://github.com/guzzle/guzzle/releases/tag/7.12.3","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.7,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-346","lang":"en","description":"CWE-346: Origin Validation Error","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-384","lang":"en","description":"CWE-384: Session Fixation","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-08T15:56:03.689Z"},"source":{"advisory":"GHSA-g446-98w2-8p5w","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-09T13:49:33.967121Z","id":"CVE-2026-59883","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-09T13:49:43.875Z"}}]}}}