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...

SUSE CVE-2026-28802

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 malicious JWT containing alg: none and an empty signature was passing the signature verification step without any changes to the application co...

SUSE-SU-2026:20708-1 Security update for gnutls

This update for gnutls fixes the following issues: Add the functionality to allow to specify the hash algorithm for the PSK. This fixes a bug in the current implementation where the binder is always calculated with SHA256. bsc1258083, jscPED-15752, jscPED-15753 lib/psk: Add...

UBUNTU-CVE-2026-28802

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 malicious JWT containing alg: none and an empty signature was passing the signature verification step without any changes to the application co...

CVE-2026-28802 Authlib: Setting `alg: none` and a blank signature appears to bypass signature verification

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 malicious JWT containing alg: none and an empty signature was passing the signature verification step without any changes to the application co...

CVE-2026-28802

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 malicious JWT containing alg: none and an empty signature was passing the signature verification step without any changes to the application co...

CVE-2026-28802

CVE-2026-28802 affects the Python package Authlib, which builds OAuth/OpenID Connect servers. The issue occurs in versions 1.6.5 through before 1.6.7, where tests involving a malicious JWT with alg: none and an empty signature could pass the signature verification step without code changes when a...

CVE-2026-28802

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 malicious JWT containing alg: none and an empty signature was passing the signature verification step without any changes to the application co...

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...

CVE-2026-28479

OpenClaw versions prior to 2026.2.15 use SHA-1 to hash sandbox identifier cache keys for Docker and browser sandbox configurations, which is deprecated and vulnerable to collision attacks. An attacker can exploit SHA-1 collisions to cause cache poisoning, allowing one sandbox configuration to be...

Security update for gnutls

This update for gnutls fixes the following issues: Security issue: CVE-2025-14831: excessive resource consumption when verifying specially crafted malicious certificates containing a large number of name constraints and subject alternative names bsc1257960. Other updates and bugfixes: update...

SUSE-SU-2026:0829-1 Security update for gnutls

This update for gnutls fixes the following issues: Security issue: - CVE-2025-14831: excessive resource consumption when verifying specially crafted malicious certificates containing a large number of name constraints and subject alternative names bsc1257960. Other updates and bugfixes: - update...

CVE-2026-3598

Use of a Broken or Risky Cryptographic Algorithm vulnerability in rustdesk-server-pro RustDesk Server Pro rustdesk-server-pro on Windows, MacOS, Linux Config string generation, web console export modules allows Retrieve Embedded Sensitive Data. This vulnerability is associated with program routin...

PT-2026-23449

Use of a Broken or Risky Cryptographic Algorithm vulnerability in rustdesk-server-pro RustDesk Server Pro rustdesk-server-pro on Windows, MacOS, Linux Config string generation, web console export modules allows Retrieve Embedded Sensitive Data. This vulnerability is associated with program routin...

PT-2026-23451

Use of a Broken or Risky Cryptographic Algorithm vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android, WebClient Config import, URI scheme handler, CLI --config modules allows Retrieve Embedded Sensitive Data. This vulnerability is associated wit...

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...

[SECURITY] Fedora 42 Update: rsync-3.4.1-5.fc42

Rsync uses a reliable algorithm to bring remote and host files into sync very quickly. Rsync is fast because it just sends the differences in the files over the network instead of sending the complete files. Rsync is often used as a very powerful mirroring process or just as a more capable...

PT-2026-23089

Name of the Vulnerable Software and Affected Versions Authlib versions 1.6.5 through 1.6.7 Description Authlib, a Python library for building OAuth and OpenID Connect servers, had a flaw in signature verification. Specifically, tests involving a malicious JWT with 'alg: none' and an empty signatu...

CVE-2026-27932

joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption JOSE standards. In 1.6.2 and earlier, a resource exhaustion vulnerability in joserfc allows an unauthenticated attacker to cause a Denial of Service DoS via CPU exhaustion. When the library...

BIT-PARSE-2026-27804 Parse Server: Account takeover via JWT algorithm confusion in Google auth adapter

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.3 and 9.3.1, an unauthenticated attacker can forge a Google authentication token with alg: "none" to log in as any user linked to a Google account, without knowing their...