CVE-2026-55767

Katalog CVE

CVSS 5.8 · Medium EPSS 0,21%

Kerentanan Origin Validation Error pada guzzlephp guzzle. Skor CVSS 3.1 5.8 (Medium) menurut github.com.

Deskripsi (NVD)

Guzzle is an extensible PHP HTTP client. Prior to 7.12.1, CookieJar incorrectly accepts cookies with a dot-only Domain attribute and whitespace-padded variants. SetCookie::matchesDomain() removes leading dots from the cookie domain, normalizing dot-only values to the empty string; SetCookie::validate() only rejected a strictly empty domain, so these cookies could be stored and the empty normalized domain was treated as matching any request host. An attacker-controlled origin that an application requests with a shared cookie jar can therefore set a cookie that Guzzle later sends to unrelated hosts using the same jar. This may allow cookie injection or session fixation against downstream services, depending on how those services interpret the injected cookie. This vulnerability is fixed in 7.12.1.

Rincian

Terbit di NVD

23 Juni 2026

Terakhir diubah

5 Agustus 2026

Status NVD

Modified

CVSS 3.1

5.8 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-346: Origin Validation Error
CWE-1286: Improper Validation of Syntactic Correctness of Input

EPSS (30 hari)

0,21% peluang dieksploitasi; lebih tinggi dari 10,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/guzzle/guzzle/security/advisories/GHSA-cwxw-98qj-8qjx advisory pihak ketiga
• https://github.com/FriendsOfPHP/security-advisories/blob/master/guzzlehttp/guzzle/CVE-2026-55767.yaml
• https://github.com/guzzle/guzzle/commit/7f537cded1912349abf5081258d6db19106d774d
• https://github.com/guzzle/guzzle/pull/3653
• https://github.com/guzzle/guzzle/releases/tag/7.12.1