CVE-2025-62706

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable...

Security update for python-Authlib

This update for python-Authlib fixes the following issues: CVE-2025-61920: limited the size of the header to prevent DoS bsc1251921. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper patch". Alternatively you can run th...

DEBIAN-CVE-2025-62706

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable...

CVE-2025-62706

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable...

UBUNTU-CVE-2025-62706

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable...

CVE-2025-62706 Authlib : JWE zip=DEF decompression bomb enables DoS

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable...

CVE-2025-62706

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable...

CVE-2025-62706 Authlib : JWE zip=DEF decompression bomb enables DoS

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable...

EUVD-2025-33799

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable...

CVE-2025-62706

Authlib’s CVE-2025-62706 affects the JWE zip=DEF decompression path in prior releases. A small ciphertext could inflate to tens/hundreds of MB during decrypt, enabling DoS via memory and CPU exhaustion. A fix exists in v1.6.5; mitigations include rejecting or stripping zip=DEF for inbound JWEs, a...

Authlib 安全漏洞

Authlib is the ultimate Python library for building OAuth and OpenID Connect servers open-sourced by Authlib. A security vulnerability exists in Authlib versions prior to 1.6.5, which stems from the JWE zip=DEF path executing an unrestricted DEFLATE decompression, which could lead to memory and C...

CVE-2025-62706: Uncontrolled Resource Consumption

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable...

python311-Authlib-1.6.5-1.1 on GA media (moderate)

python311-Authlib-1.6.5-1.1 on GA media Announcement ID: openSUSE-SU-2025:15629-1 Rating: moderate Cross-References: CVE-2025-61920 CVSS scores: CVE-2025-61920 SUSE : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2025-61920 SUSE : 8.7...

Linux Distros Unpatched Vulnerability : CVE-2025-61920

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 1.6.5, Authlib's JOSE implementation accepts unbounded JWS/JWT heade...

SUSE CVE-2025-61920

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib's JOSE implementation accepts unbounded JWS/JWT header and signature segments. A remote attacker can craft a token whose base64url-encoded header or signature spans hundreds of megabytes...

OPENSUSE-SU-2025:15629-1 python311-Authlib-1.6.5-1.1 on GA media

These are all security issues fixed in the python311-Authlib-1.6.5-1.1 package on the GA media of openSUSE Tumbleweed...

GHSA-G7F3-828F-7H7M Authlib : JWE zip=DEF decompression bomb enables DoS

Summary Authlib’s JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt, allowing an attacker who can supply decryptable tokens to exhaust memory and CPU and cause denial of service. Details - Affected component...

Allocation of Resources Without Limits or Throttling

Overview authlib is a library in building OAuth and OpenID Connect servers. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the DeflateZipAlgorithm.decompress function. An attacker can exhaust memory and CPU resources by submitting...

CVE-2025-61920

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JOSE implementation accepts unbounded JWS/JWT header and signature segments. A remote attacker can craft a token whose base64url‑encoded header or signature spans hundreds of megabytes...

GHSA-PQ5P-34CR-23V9 Authlib is vulnerable to Denial of Service via Oversized JOSE Segments

Summary Authlib’s JOSE implementation accepts unbounded JWS/JWT header and signature segments. A remote attacker can craft a token whose base64url‑encoded header or signature spans hundreds of megabytes. During verification, Authlib decodes and parses the full input before it is rejected, driving...