CVE-2026-67355
8.2
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Summary
guzzlehttp/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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| guzzle | guzzle | 0 < 7.15.1 | affected |
| guzzle | guzzle | 7.15.1 | unaffected |
Weaknesses
- CWE-201: Insertion of Sensitive Information Into Sent Data
References
- https://github.com/guzzle/guzzle/security/advisories/GHSA-wm3w-8rrp-j577
- https://www.vulncheck.com/advisories/guzzlehttp-guzzle-before-host-only-cookie-scope
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