CVE-2026-67353
CVE-2026-67353 · guzzlehttp/guzzle before 7.15.1 Unbounded Cookie Denial of Service
This page contains facts from public vulnerability sources. Check the original advisory before updating.
guzzlehttp/guzzle versions before 7.15.1 contain a denial of service vulnerability in the CookieJar that accepts unlimited Set-Cookie header fields with no size restrictions. Attackers can return many large cookies from a malicious server, causing Guzzle to store excessive data in memory and generate oversized Cookie headers that fail in handlers or destination servers.
CVSS 6.9 · Medium · EPSS 0.4% · Fix available
- Published
- Updated
Affected products and versions
guzzle
- Versions
- ≥ 0, < 7.15.1: Affected (semver)
- 7.15.1: Not affected (semver)
Update to 7.15.1
guzzle Debian:12
- Versions
- 7.11.0-1
- 7.12.0-1
- 7.12.1-1
- 7.12.3-1
- 7.13.1-1
- 7.14.0-1
- 7.14.1-1
- 7.14.2-1
- 7.15.0-1
- 7.15.1-1
- 7.15.2-1
- 7.15.3-1
- 7.15.5-1
- 7.4.5-1
- 7.9.2-0.1
- 8.0.1-1
- 8.0.2-1
- 8.1.0-1
- 8.2.0-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
guzzle Debian:13
- Versions
- 7.11.0-1
- 7.12.0-1
- 7.12.1-1
- 7.12.3-1
- 7.13.1-1
- 7.14.0-1
- 7.14.1-1
- 7.14.2-1
- 7.15.0-1
- 7.15.1-1
- 7.15.2-1
- 7.15.3-1
- 7.15.5-1
- 7.9.2-0.1
- 8.0.1-1
- 8.0.2-1
- 8.1.0-1
- 8.2.0-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
guzzle Debian:14
- Versions
- 7.11.0-1
- 7.12.0-1
- 7.12.1-1
- 7.12.3-1
- 7.13.1-1
- 7.14.0-1
- 7.14.1-1
- 7.14.2-1
- 7.15.0-1
- 7.9.2-0.1
- Affected ranges
- ECOSYSTEM: < 7.15.1-1
Update to 7.15.1-1
guzzlehttp/guzzle Packagist
- Versions
- 4.0.0
- 4.0.0-rc.1
- 4.0.0-rc.2
- 4.0.1
- 4.0.2
- 4.1.0
- 4.1.1
- 4.1.2
- 4.1.3
- 4.1.4
- 4.1.5
- 4.1.6
- 4.1.7
- 4.1.8
- 4.2.0
- 4.2.1
- 4.2.2
- 4.2.3
- 4.2.4
- 5.0.0
- 5.0.1
- 5.0.2
- 5.0.3
- 5.1.0
- 5.2.0
- 5.3.0
- 5.3.1
- 5.3.2
- 5.3.3
- 5.3.4
- 6.0.0
- 6.0.1
- 6.0.2
- 6.1.0
- 6.1.1
- 6.2.0
- 6.2.1
- 6.2.2
- 6.2.3
- 6.3.0
- 6.3.1
- 6.3.2
- 6.3.3
- 6.4.0
- 6.4.1
- 6.5.0
- 6.5.1
- 6.5.2
- 6.5.3
- 6.5.4
- 6.5.5
- 6.5.6
- 6.5.7
- 6.5.8
- 7.0.0
- 7.0.0-beta.1
- 7.0.0-beta.2
- 7.0.0-rc.1
- 7.0.1
- 7.1.0
- 7.1.1
- 7.10.0
- 7.10.1
- 7.10.2
- 7.10.3
- 7.10.4
- 7.10.5
- 7.10.6
- 7.11.0
- 7.11.1
- 7.11.2
- 7.12.0
- 7.12.1
- 7.12.2
- 7.12.3
- 7.13.0
- 7.13.1
- 7.13.2
- 7.13.3
- 7.14.0
- 7.14.1
- 7.14.2
- 7.15.0
- 7.2.0
- 7.3.0
- 7.4.0
- 7.4.1
- 7.4.2
- 7.4.3
- 7.4.4
- 7.4.5
- 7.5.0
- 7.5.1
- 7.5.2
- 7.5.3
- 7.6.0
- 7.6.1
- 7.7.0
- 7.7.1
- 7.8.0
- 7.8.1
- 7.8.2
- 7.9.0
- 7.9.1
- 7.9.2
- 7.9.3
- v1.0.3
- v1.0.4
- v2.0.0
- v2.0.1
- v2.0.2
- v2.0.3
- v2.0.4
- v2.0.5
- v2.1.0
- v2.1.1
- v2.1.2
- v2.1.3
- v2.1.4
- v2.2.0
- v2.2.1
- v2.2.2
- v2.2.3
- v2.2.4
- v2.3.2
- v2.4.0
- v2.4.1
- v2.5.0
- v2.6.0
- v2.6.1
- v2.6.2
- v2.6.3
- v2.6.4
- v2.6.5
- v2.6.6
- v2.7.0
- v2.7.1
- v2.7.2
- v2.8.0
- v2.8.1
- v2.8.2
- v2.8.3
- v2.8.4
- v2.8.5
- v2.8.6
- v2.8.7
- v2.8.8
- v3.0.0
- v3.0.1
- v3.0.2
- v3.0.3
- v3.0.4
- v3.0.5
- v3.0.6
- v3.0.7
- v3.1.0
- v3.1.1
- v3.1.2
- v3.2.0
- v3.3.0
- v3.3.1
- v3.4.0
- v3.4.1
- v3.4.2
- v3.4.3
- v3.5.0
- v3.6.0
- v3.7.0
- v3.7.1
- v3.7.2
- v3.7.3
- v3.7.4
- v3.8.0
- v3.8.1
- Affected ranges
- ECOSYSTEM: < 7.15.1
Update to 7.15.1
guzzle Ubuntu:24.04:LTS
- Versions
- 7.4.5-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
guzzle Ubuntu:26.10
- Versions
- 7.9.2-0.1build1
- 7.13.1-1
- 7.15.1-1
- 7.15.2-1
- 7.15.3-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
guzzle Ubuntu:26.04:LTS
- Versions
- 7.9.2-0.1
- 7.9.2-0.1build1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published