CVE-2026-40458

Katalog CVE

CVSS 6.5 · Medium EPSS 0,18%

Kerentanan Cross-Site Request Forgery (CSRF) pada pac4j. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

PAC4J is vulnerable to Cross-Site Request Forgery (CSRF). A malicious attacker can craft a specially designed website which, when visited by a user, will automatically submit a forged cross-site request with a token whose hash collides with the victim's legitimate CSRF token. Importantly, the attacker does not need to know the victim’s CSRF token or its hash prior to the attack. Collisions in the deterministic String.hashCode() function can be computed directly, reducing the effective token's security space to 32 bits. This bypasses CSRF protection, allowing profile updates, password changes, account linking, and any other state-changing operations to be performed without the victim's consent. This issue was fixed in PAC4J versions 5.7.10 and 6.4.1

Rincian

Terbit di NVD

17 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

6.5 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-352: Cross-Site Request Forgery (CSRF)

EPSS (30 hari)

0,18% peluang dieksploitasi; lebih tinggi dari 7,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.pac4j.org/blog/security-advisory-pac4j-core-and-ldap.html advisory vendor
• https://cert.pl/en/posts/2026/04/CVE-2026-40458/ advisory pihak ketiga