http4k's Digest authentication module (org.http4k:http4k-security-digest) before versions 6.48.0.0, 5.42.0.0 and 4.51.0.0 defaults the nonceVerifier parameter of ServerFilters.DigestAuth and DigestAuthProvider to { true }, so every nonce is accepted regardless of its value, age, or prior use. Applications relying on this default have no replay protection on Digest authentication: an attacker who can capture a valid 'Authorization: Digest' response (for example by observing network traffic or reading logs) can replay it indefinitely against the same protected resource.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Sun, 27 Sep 2026 05:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Http4k
Http4k http4k |
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| Vendors & Products |
Http4k
Http4k http4k |
Sun, 27 Sep 2026 02:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | http4k's Digest authentication module (org.http4k:http4k-security-digest) before versions 6.48.0.0, 5.42.0.0 and 4.51.0.0 defaults the nonceVerifier parameter of ServerFilters.DigestAuth and DigestAuthProvider to { true }, so every nonce is accepted regardless of its value, age, or prior use. Applications relying on this default have no replay protection on Digest authentication: an attacker who can capture a valid 'Authorization: Digest' response (for example by observing network traffic or reading logs) can replay it indefinitely against the same protected resource. | |
| Title | http4k before 6.48.0.0 Digest Authentication Replay Protection Bypass | |
| Weaknesses | CWE-294 | |
| References |
| |
| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-27T01:28:32.781Z
Reserved: 2026-09-26T23:23:03.410Z
Link: CVE-2026-100834
No data.
Status : Received
Published: 2026-09-27T02:17:21.487
Modified: 2026-09-27T02:17:21.487
Link: CVE-2026-100834
No data.
OpenCVE Enrichment
Updated: 2026-09-27T05:00:07Z
Weaknesses