CVE-2026-82461

Katalog CVE

CVSS 8.1 · High EPSS 0,32%

Kerentanan Improper Verification of Cryptographic Signature. Skor CVSS 3.1 8.1 (High) menurut vulncheck.com.

Deskripsi (NVD)

pac4j-oidc before 6.5.6 fails to verify access token signatures, issuers, audiences, or expiry when extracting Keycloak realm and client roles. Attackers can forge access tokens with administrative roles paired with valid ID tokens to bypass authorization checks in applications relying on pac4j role validation.

Rincian

Terbit di NVD

29 Agustus 2026

Terakhir diubah

10 September 2026

Status NVD

Awaiting Analysis

CVSS 3.1

8.1 (High), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-347: Improper Verification of Cryptographic Signature

EPSS (30 hari)

0,32% peluang dieksploitasi; lebih tinggi dari 22,7% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/pac4j/pac4j
• https://github.com/pac4j/pac4j/blob/pac4j-parent-6.5.5/pac4j-oidc/src/main/java/org/pac4j/oidc/authorization/g...
• https://github.com/pac4j/pac4j/commit/2270c3ff70e93cc43831e75702acd5135531237e
• https://www.pac4j.org/blog/security-advisory-pac4j-core-oidc-saml.html
• https://www.vulncheck.com/advisories/pac4j-oidc-before-6.5.6-privilege-escalation-via-unverified-keycloak-acce...