CVE-2026-29000

Katalog CVE

CVSS 9.1 · Critical EPSS 0,50%

Kerentanan Improper Verification of Cryptographic Signature. Skor CVSS 3.1 9.1 (Critical) menurut vulncheck.com.

Deskripsi (NVD)

pac4j-jwt versions prior to 4.5.9, 5.7.9, and 6.3.3 contain an authentication bypass vulnerability in JwtAuthenticator when processing encrypted JWTs that allows remote attackers to forge authentication tokens. Attackers who possess the server's RSA public key can create a JWE-wrapped PlainJWT with arbitrary subject and role claims, bypassing signature verification to authenticate as any user including administrators.

Rincian

Terbit di NVD

4 Maret 2026

Terakhir diubah

8 Oktober 2026

Status NVD

Deferred

CVSS 3.1

9.1 (Critical), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:N/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)

0,50% peluang dieksploitasi; lebih tinggi dari 41,2% 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://www.codeant.ai/security-research/pac4j-jwt-authentication-bypass-public-key
• https://www.pac4j.org/blog/security-advisory-pac4j-jwt-jwtauthenticator.html
• https://www.vulncheck.com/advisories/pac4j-jwt-jwtauthenticator-authentication-bypass