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CVE-2026-3099

Libsoup: libsoup: authentication bypass via digest authentication replay attack PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Red Hat / Red Hat Enterprise Linux 10unaffected
Red Hat / Red Hat Enterprise Linux 6unknown
Red Hat / Red Hat Enterprise Linux 7unaffected
Red Hat / Red Hat Enterprise Linux 8unaffected
Red Hat / Red Hat Enterprise Linux 9unaffected

CWE

CWE-323

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.