SB2026012773 - Red Hat Enterprise Linux 8 update for python3.11 

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Main Vulnerability Database SB2026012773

SB2026012773 - Red Hat Enterprise Linux 8 update for python3.11

Published: January 27, 2026

Security Bulletin ID SB2026012773
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Resource exhaustion (CVE-ID: CVE-2025-13836)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when reading HTTP responses in Lib/http/client.py. A remote attacker can trigger memory exhaustion and perform a denial of service (DoS) attack.


2) Inefficient algorithmic complexity (CVE-ID: CVE-2025-12084)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to usage of a quadratic algorithm when building nested elements using xml.dom.minidom methods such as appendChild() that have a dependency on _clear_id_cache(). A remote attacker can force the application to create excessively nested documents, leading to a denial of service condition. 


Remediation

Install update from vendor's website.

References