SB2026021086 - Red Hat Enterprise Linux 9 update for pcs



SB2026021086 - Red Hat Enterprise Linux 9 update for pcs

Published: February 10, 2026

Security Bulletin ID SB2026021086
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 67% Low 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Excessive Iteration (CVE-ID: CVE-2025-67725)

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

The vulnerability exists due to excessive iteration within the HTTPHeaders.add() method. A remote attacker can send a specially crafted HTTP request and perform a denial of service attack


2) Excessive Iteration (CVE-ID: CVE-2025-67726)

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

The vulnerability exists due to excessive iteration within the _parseparam() function in httputil.py when parsing specific HTTP header values. A remote attacker can send a specially crafted HTTP request and perform a denial of service attack


3) Prototype pollution (CVE-ID: CVE-2025-13465)

The vulnerability allows a remote attacker to alter application's behavior. 

The vulnerability exists due to improper input validation within the in the _.unset and _.omit functions. A remote attacker can pass specially crafted input to the application and delete methods from global prototypes.


Remediation

Install update from vendor's website.