Out-of-bounds Read Affecting libsoup package, versions [0,3.6.6)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.59% (44th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Out-of-bounds Read vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-UNMANAGED-LIBSOUP-13110056
  • published29 Sept 2025
  • disclosed26 Sept 2025
  • creditMichael Catanzaro

Introduced: 26 Sep 2025

CVE-2025-11021  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade libsoup to version 3.6.6 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read via the cookie date formatting process. An attacker can access sensitive memory contents by sending specially crafted cookie headers.

CVSS Base Scores

version 4.0
version 3.1