aad-fastapi-dl37 (>=1.0.0 <=1.0.2), agentiq (>=1.2.0a20250730 <=1.2.0rc4) +225 more potentially affected by CVE-2026-27962 via authlib (>=1.0.0 <=1.6.8)

authlib PYPI version =1.0.0, =1.0.0, =1.2.0a20250730, =1.1.0, =1.2.0a20250730, =0.4.0, =0.1.0, =0.5.0, =0.1.0a1, =1.2.0, =1.2.0a20250730, =1.2.0a20250730, =1.2.0a20250730, =1.2.0, =1.2.0a20250730, =1.2.0a20250730, =1.2.0rc4 and more Source cves: CVE-2026-27962 Source advisory:...

UBUNTU-CVE-2026-28490

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 RSA15 key management algorithm. Authlib registe...

UBUNTU-CVE-2026-28498

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a library-level vulnerability was identified in the Authlib Python library concerning the validation of OpenID Connect OIDC ID Tokens. Specifically, the internal hash verification logic verifyhash...

UBUNTU-CVE-2026-27962

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a JWK Header Injection vulnerability in authlib's JWS implementation allows an unauthenticated attacker to forge arbitrary JWT tokens that pass signature verification. When key=None is passed to any...

CVE-2026-28490

Authlib (Python) RSA1_5 JWE handling is vulnerable to Bleichenbacher padding oracle attacks. The issue stems from a length check in RSAAlgorithm.unwrap() that raises a distinct exception when padding is invalid, destroying the cryptographic BLEichenbacher mitigation provided by cryptography v46.0...

CVE-2026-27962

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a JWK Header Injection vulnerability in authlib's JWS implementation allows an unauthenticated attacker to forge arbitrary JWT tokens that pass signature verification. When key=None is passed to any...

aad-fastapi (>=1.0.0 <=1.1.2), aad-fastapi-dl37 (>=1.0.0 <=1.0.3) +283 more potentially affected by CVE-2026-28498 via authlib (>=0.10.0 <=1.6.8)

authlib PYPI version =0.10.0, =1.0.0, =1.0.0, =0.0.1, =1.0.2, =1.0.2, =1.2.0a20250730, =1.1.0, =1.2.0a20250730, =0.4.0, =0.1.0, =0.5.0, =0.1.0a1, =1.2.0, =1.2.0a20250730, =1.2.0a20250730, =1.2.0rc4 and more Source cves: CVE-2026-28498 Source advisory: OSV:GHSA-M344-F55W-2M6J...

aad-fastapi (>=1.0.0 <=1.1.2), aad-fastapi-dl37 (>=1.0.0 <=1.0.3) +283 more potentially affected by CVE-2026-28490 via authlib (>=0.10.0 <=1.6.8)

authlib PYPI version =0.10.0, =1.0.0, =1.0.0, =0.0.1, =1.0.2, =1.0.2, =1.2.0a20250730, =1.1.0, =1.2.0a20250730, =0.4.0, =0.1.0, =0.5.0, =0.1.0a1, =1.2.0, =1.2.0a20250730, =1.2.0a20250730, =1.2.0rc4 and more Source cves: CVE-2026-28490 Source advisory: OSV:GHSA-7432-952R-CW78...

EUVD-2026-12480

Authlib Vulnerable to JWE RSA15 Bleichenbacher Padding Oracle...

aad-fastapi (>=1.0.0 <=1.1.2), aad-fastapi-dl37 (>=1.0.0 <=1.0.3) +283 more potentially affected by CVE-2026-27962 via authlib (>=0.10.0 <=1.6.8)

authlib PYPI version =0.10.0, =1.0.0, =1.0.0, =0.0.1, =1.0.2, =1.0.2, =1.2.0a20250730, =1.1.0, =1.2.0a20250730, =0.4.0, =0.1.0, =0.5.0, =0.1.0a1, =1.2.0, =1.2.0a20250730, =1.2.0a20250730, =1.2.0rc4 and more Source cves: CVE-2026-27962 Source advisory: OSV:GHSA-WVWJ-CVRP-7PV5...

Linux Distros Unpatched Vulnerability : CVE-2026-27962

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a JWK Header Injection vulnerability in authlib's JWS...

Authlib 安全漏洞

Authlib is an open-source library developed by Authlib, designed as a ultimate Python library for building OAuth and OpenID Connect servers. Versions of Authlib prior to 1.6.9 contained security vulnerabilities. These vulnerabilities stemmed from the OpenID Connect ID token verification logic,...

Improper Signature Verification

Authlib is vulnerable to improper signature verification. The vulnerability is due to improper validation of JWT tokens where tokens with alg: none and an empty signature bypass the signature verification process, which allows an attacker to forge authentication tokens and gain unauthorized acces...

Linux Distros Unpatched Vulnerability : CVE-2026-28802

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Authlib is a Python library which builds OAuth and OpenID Connect servers. From version 1.6.5 to before version 1.6.7, previous tests involving passing a...

Authlib 数据伪造问题漏洞

Authlib is an open-source library developed by Authlib developers, designed as a ultimate Python library for building OAuth and OpenID Connect servers. Versions of Authlib from 1.6.5 to 1.6.7 had a data manipulation vulnerability. This vulnerability occurred when malicious JWTs containing alg: no...

agentstack-cli (>=0.4.0 <=0.6.2rc6), aieng-platform-onboard (>=0.5.0 <=0.6.1) +90 more potentially affected by CVE-2026-28802 via authlib (>=1.6.0 <=1.6.6)

authlib PYPI version =1.6.0, =0.4.0, =0.5.0, =0.9.5, =0.19.0, =0.38.0, =0.1.0, =0.1.0, =0.1.0, =1.7.0, =0.1.1rc22, =0.1.0, =0.1.0, =0.7.0, =0.2.19, =0.5.24 and more Source cves: CVE-2026-28802 Source advisory: SNYK:PYTHON-AUTHLIB-15425813...

agentstack-cli (>=0.5.0 <=0.6.2rc6), aieng-platform-onboard (>=0.5.0 <=0.6.1) +34 more potentially affected by CVE-2026-28802 via authlib (>=1.6.5 <=1.6.6)

authlib PYPI version =1.6.5, =0.5.0, =0.5.0, =0.21.0, =0.44.0, =1.7.0, =0.8.0, =1.0.20, =0.12.0, =1.0.3, =0.2.0, =0.1.3, =1.0.0, =1.115.2, =0.2.20, =1.0.0, =1.1.2 and more Source cves: CVE-2026-28802 Source advisory: OSV:GHSA-7WC2-QXGW-G8GG...

Authlib: Setting `alg: none` and a blank signature appears to bypass signature verification

Summary After upgrading the library from 1.5.2 to 1.6.0 and the latest 1.6.5 it was noticed that previous tests involving passing a malicious JWT containing alg: none and an empty signature was passing the signature verification step without any changes to the application code when a failure was...

Authlib has 1-click Account Takeover vulnerability

Security Advisory: Cache-Backed State Storage CSRF in Authlib The Security Labs team at Snyk has reported a security issue affecting Authlib, identified during a recent research project. The Snyk Security Labs team has identified a vulnerability that can result in a one-click account takeover in...

GHSA-FG6F-75JQ-6523 Authlib has 1-click Account Takeover vulnerability

Security Advisory: Cache-Backed State Storage CSRF in Authlib The Security Labs team at Snyk has reported a security issue affecting Authlib, identified during a recent research project. The Snyk Security Labs team has identified a vulnerability that can result in a one-click account takeover in...