SB2026021224 - Ubuntu update for libsoup3 



SB2026021224 - Ubuntu update for libsoup3

Published: February 12, 2026

Security Bulletin ID SB2026021224
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

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

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) CRLF injection (CVE-ID: CVE-2026-1467)

The vulnerability allows a remote attacker to inject arbitrary data in server response.

The vulnerability exists due to insufficient validation of attacker-supplied data. A remote attacker can pass specially crafted HTTP request ta to the application containing CR-LF characters and modify application behavior.


2) CRLF injection (CVE-ID: CVE-2026-1536)

The vulnerability allows a remote attacker to inject arbitrary data in server response.

The vulnerability exists due to insufficient validation of attacker-supplied data. A remote attacker can pass specially crafted HTTP request ta to the application containing CR-LF characters and modify application behavior.


3) Information disclosure (CVE-ID: CVE-2026-1539)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to library does not remove data from Proxy-Authorization header when following redirects. A remote attacker can gain access to sensitive information passed via the Proxy-Authorization header. 


Remediation

Install update from vendor's website.