{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-59883","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-07T16:40:07.982Z","datePublished":"2026-07-08T15:56:03.689Z","dateUpdated":"2026-07-09T13:49:43.875Z"},"containers":{"cna":{"title":"Guzzle: Cookie Disclosure and Injection via IP-Address Domains","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"}]}],"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"}}],"references":[{"name":"https://github.com/guzzle/guzzle/security/advisories/GHSA-g446-98w2-8p5w","tags":["x_refsource_CONFIRM"],"url":"https://github.com/guzzle/guzzle/security/advisories/GHSA-g446-98w2-8p5w"},{"name":"https://github.com/guzzle/guzzle/pull/3694","tags":["x_refsource_MISC"],"url":"https://github.com/guzzle/guzzle/pull/3694"},{"name":"https://github.com/guzzle/guzzle/commit/b9944c161b12d9ee9c9334cfc5b9659ecd7451f8","tags":["x_refsource_MISC"],"url":"https://github.com/guzzle/guzzle/commit/b9944c161b12d9ee9c9334cfc5b9659ecd7451f8"},{"name":"https://github.com/guzzle/guzzle/releases/tag/7.12.3","tags":["x_refsource_MISC"],"url":"https://github.com/guzzle/guzzle/releases/tag/7.12.3"}],"affected":[{"vendor":"guzzle","product":"guzzle","versions":[{"version":"< 7.12.3","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-08T15:56:03.689Z"},"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."}],"source":{"advisory":"GHSA-g446-98w2-8p5w","discovery":"UNKNOWN"}},"adp":[{"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"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-09T13:49:43.875Z"}}]}}