HIGH 8.2 NVD
CVE-2026-100834
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 o
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.
References
- https://github.com/http4k/http4k/commit/4f904b4692
- https://github.com/http4k/http4k/commit/8a52b615b1
- https://github.com/http4k/http4k/security/advisories/GHSA-c7jm-38gq-h67h
- https://www.vulncheck.com/advisories/http4k-before-6.48.0.0-digest-authentication-replay-p
This high severity vulnerability with a CVSS score of 8.2 was published on 2026-09-27 via NVD.
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