CVE-2026-59883 — Guzzle: Cookie Disclosure and Injection via IP-Address Domains
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, …
Published: 2026-07-08 · CVSS: 4.7 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7