Information Exposure Affecting guzzle package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.37% (28th percentile)

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  • Snyk IDSNYK-DEBIAN12-GUZZLE-18505612
  • published2 Aug 2026
  • disclosed1 Aug 2026

Introduced: 1 Aug 2026

CVE-2026-67355  (opens in a new tab)
CWE-201  (opens in a new tab)

How to fix?

There is no fixed version for Debian:12 guzzle.

NVD Description

Note: Versions mentioned in the description apply only to the upstream guzzle package and not the guzzle package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1