CVE-2026-87802

Katalog CVE

CVSS 9.1 · Critical EPSS 0,28%

Kerentanan Improper Verification of Cryptographic Signature. Skor CVSS 3.1 9.1 (Critical) menurut CISA ADP.

Deskripsi (NVD)

Improper verification of cryptographic signature vulnerability in Apache Syncope. When SRA is configured for OAuth 2.0 without JWKS set URI assigned, an attacker can forge arbitrary JWTs to impersonate any user identity and permissions, gaining full access to services proxied by SRA. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Rincian

Terbit di NVD

14 September 2026

Terakhir diubah

14 September 2026

Status NVD

Deferred

CVSS 3.1

9.1 (Critical), sumber CISA ADP
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)

0,28% peluang dieksploitasi; lebih tinggi dari 18,5% 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://lists.apache.org/thread/gx83cootj00kn8hqd73x1bp8441np33d
• http://www.openwall.com/lists/oss-security/2026/09/14/25