CVE-2026-28490

Katalog CVE

CVSS 6.5 · Medium EPSS 0,17%

Kerentanan Observable Discrepancy pada authlib. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a cryptographic padding oracle vulnerability was identified in the Authlib Python library concerning the implementation of the JSON Web Encryption (JWE) RSA1_5 key management algorithm. Authlib registers RSA1_5 in its default algorithm registry without requiring explicit opt-in, and actively destroys the constant-time Bleichenbacher mitigation that the underlying cryptography library implements correctly. This issue has been patched in version 1.6.9.

Rincian

Terbit di NVD

16 Maret 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-203: Observable Discrepancy
CWE-327: Use of a Broken or Risky Cryptographic Algorithm

EPSS (30 hari)

0,17% peluang dieksploitasi; lebih tinggi dari 5,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/authlib/authlib/security/advisories/GHSA-7432-952r-cw78 exploit · mitigasi · advisory vendor
• https://github.com/authlib/authlib/commit/48b345f29f6c459f11c6a40162b6c0b742ef2e22 patch
• https://github.com/authlib/authlib/releases/tag/v1.6.9 product · release notes