MEDIUMVulnerability
CVE-2026-67355
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.
Properties
- severity
- MEDIUM
- score
- 5.9
- epss_score
- 0.00229
- cve_id
- CVE-2026-67355
- vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- published_at
- 2026-08-01T13:17:06.283
- last_modified
- 2026-09-08T20:35:01.260
- epss_percentile
- 0.13637
Related Entities (3)
ENRICHED_BY (1)
→[Source]FIRST EPSS
DESCRIBED_BY (1)
→[Source]NVD
HAS_WEAKNESS (1)
→[Weakness]Insertion of Sensitive Information Into Sent Data
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