CVE-2026-59883

MediumCVSS 6.1/10Last modified Jul 13, 2026

Description

Guzzle is an extensible PHP HTTP client. Prior to 7.12.3, CookieJar did not restrict cookies scoped to IP-address or bare-numeric Domain values to the exact host that set them, because SetCookie::matchesDomain() applied ordinary suffix matching to domains such as 192.168.0.1, [::1], or 1, allowing cross-host cookie disclosure, cookie injection, or session fixation. This issue is fixed in version 7.12.3.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-346 CWE-384

Affected software

No affected versions have been published.

Timeline

Published: Jul 8, 2026
Last modified: Jul 13, 2026
NVD status: Analyzed

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