CVE-2026-15747

Açıklama (NVD)

Mojolicious versions from 4.59 before 9.48 for Perl expose a stable representation of the session CSRF token to a BREACH compression oracle. _csrf_token generates and caches one token per session and returns the same value on every call, and _csrf_field places that value in a hidden `csrf_token` input. When a response carrying the token also echoes attacker-controlled input and is gzip-compressed, the chosen values and the resulting compressed lengths form a BREACH oracle. An attacker able to query it can recover the token and pass csrf_protect validation.

Yayın: 14.07.2026 · Son değişiklik: 25.10.2026 · Zayıflık: CWE-204, CWE-352

CVSS 3.1 metrikleri

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Hesaplanan temel puan: 9.1. CVSS hesaplayıcıda incele

Referanslar

• https://github.com/mojolicious/mojo/commit/01921fbbbbeca2d1397e082d4a647f9b84c24e27.patch
• https://metacpan.org/release/SRI/Mojolicious-9.48/changes
• http://www.openwall.com/lists/oss-security/2026/07/14/16