{"id":"GHSA-mjrx-74jh-7xgw","title":"Duplicate Advisory: Guzzle: Host-only cookie scope is not preserved","summary":"Duplicate Advisory: Guzzle: Host-only cookie scope is not preserved","severity":"high","cvss":5.9,"cwe":["CWE-201"],"vendor":"guzzlehttp","product":"guzzlehttp/guzzle","ecosystem":"composer","affected":["guzzlehttp/guzzle < 7.15.1"],"published":"2026-08-01","updated":"2026-08-04","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-mjrx-74jh-7xgw","references":[{"url":"https://github.com/guzzle/guzzle/security/advisories/GHSA-wm3w-8rrp-j577"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67355"},{"url":"https://www.vulncheck.com/advisories/guzzlehttp-guzzle-before-host-only-cookie-scope"},{"url":"https://github.com/advisories/GHSA-mjrx-74jh-7xgw"}],"tags":["ghsa","composer"],"ingestedAt":"2026-08-05T05:58:04.785Z","slug":"GHSA-mjrx-74jh-7xgw","body":"## Overview\n\n## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-wm3w-8rrp-j577. This link is maintained to preserve external references.\n\n## Original Description\nguzzlehttp/guzzle versions before 7.15.1 fail to preserve host-only cookie scope, storing the request host in the Domain field instead of marking cookies as host-only. Attackers controlling child hosts can receive host-only cookies intended only for parent hosts, potentially disclosing session identifiers and authorization tokens when the same cookie jar is reused across trust boundaries.\n\n## Affected packages\n\n- `guzzlehttp/guzzle < 7.15.1`\n\n## Remediation\n\nRefer to the advisory for the patched release.","depth":"twilight","depthScore":32,"depthScoreParts":{"impact":32.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}