PT-2026-23804 · Libsoup · Libsoup

Cavid

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Publicado

2026-01-01

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Atualizado

2026-03-13

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CVE-2026-3099

CVSS v2.0

7.5

Alta

VetorAV: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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Enumeração de Fraquezas

Identificadores relacionados

BDU:2026-04357
CVE-2026-3099
ECHO-9DE4-E5AE-BD39

Produtos afetados

Libsoup