PT-2026-23804 · Libsoup · Libsoup
Cavid
·
Published
2026-01-01
·
Updated
2026-03-13
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CVE-2026-3099
CVSS v2.0
7.5
High
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Name of the Vulnerable Software and Affected Versions
Libsoup (affected versions not specified)
Description
The server-side digest authentication implementation within the
SoupAuthDomainDigest class does not correctly manage issued nonces or enforce the necessary incremental nonce-count (nc) attribute. This allows a remote attacker to capture a single valid authentication header and replay it multiple times, bypassing authentication and gaining unauthorized access to protected resources while impersonating a legitimate user. A nonce is a random or pseudo-random value used to prevent replay attacks. The nc attribute is a counter that must increment with each authentication attempt to ensure the validity of the request.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Weakness Enumeration
Related Identifiers
Affected Products
Libsoup