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.
Metrics
Affected Vendors & Products
References
History
Thu, 12 Mar 2026 18:15:00 +0000
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ssvc
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Thu, 12 Mar 2026 15:15:00 +0000
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| References |
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Thu, 12 Mar 2026 14:15:00 +0000
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| Description | No description is available for this CVE. | 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. |
| Title | libsoup: Libsoup: Authentication bypass via digest authentication replay attack | Libsoup: libsoup: authentication bypass via digest authentication replay attack |
| First Time appeared |
Redhat
Redhat enterprise Linux |
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| CPEs | cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux |
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| References |
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Wed, 25 Feb 2026 12:00:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Libsoup
Libsoup libsoup |
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| Vendors & Products |
Libsoup
Libsoup libsoup |
Tue, 24 Feb 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
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| Description | No description is available for this CVE. | |
| Title | libsoup: Libsoup: Authentication bypass via digest authentication replay attack | |
| Weaknesses | CWE-323 | |
| References |
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| Metrics |
threat_severity
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cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published: 2026-03-12T13:53:48.848Z
Updated: 2026-03-12T17:44:43.631Z
Reserved: 2026-02-24T07:37:48.680Z
Link: CVE-2026-3099
Updated: 2026-03-12T17:44:38.510Z
Status : Awaiting Analysis
Published: 2026-03-12T14:16:18.760
Modified: 2026-03-12T21:07:53.427
Link: CVE-2026-3099
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