SB2025103168 - SUSE update for python-Authlib
Published: October 31, 2025
Security Bulletin ID
SB2025103168
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2025-62706)
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to Authlib's JWE zip=DEF path performs unbounded DEFLATE decompression. A very small ciphertext can expand into tens or hundreds of megabytes on decrypt. A remote user can supply decryptable tokens and exhaust memory and CPU resources, leading to denial of service conditions.
Remediation
Install update from vendor's website.