Description

A flaw was found in Libsoup. The server-side digest authentication implementation in the SoupAuthDomainDigest class does not properly track issued nonces or enforce the required incrementing nonce-count (nc) attribute. This vulnerability allows a remote attacker to capture a single valid authentication header and replay it repeatedly. Consequently, the attacker can bypass authentication and gain unauthorized access to protected resources, impersonating the legitimate user.

INFO

Published Date :

2026-03-12T13:53:48.848Z

Last Modified :

2026-05-01T15:31:03.428Z

Source :

redhat
AFFECTED PRODUCTS

The following products are affected by CVE-2026-3099 vulnerability.

Vendors Products
Gnome
  • Libsoup
Libsoup
  • Libsoup
Redhat
  • Enterprise Linux
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-3099.

URL Resource
https://access.redhat.com/security/cve/CVE-2026-3099 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2442232 cve-icon cve-icon
https://gitlab.gnome.org/GNOME/libsoup/-/issues/495 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-3099 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-3099 cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact