AIKIDO-2026-149241
http4k-security-digest is vulnerable to Authentication Bypass by Capture-replay
81
High Risk
This Affects:
http4k-security-digestTL;DR
DigestAuthProvider.verify in the http4k Digest authentication provider does not check the uri parameter of the client's Authorization: Digest response against the actual request URL. A captured Digest response can be replayed against any other URL served by the same realm, breaking the per-request-URL binding the Digest scheme relies on. This lets a previously observed authentication be reused to reach a different protected resource without valid credentials for that URL. The fix rejects credentials whose uri parameter does not match the request URL.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you use http4k-security-digest for HTTP Digest authentication.
Background info
http4k-security-digest is vulnerable to Authentication Bypass by Capture-replay in versions 0.0.1 - 4.50.0.0, 5.0.0.0 - 5.41.0.0 and 6.0.0.0 - 6.49.0.0.
How to fix this
Upgrade the org.http4k:http4k-security-digest library to the patch version.
Are You Affected?
Connect your repositories to instantly see whether vulnerable or malicious packages exist in your codebase.
Free. No credit card required.
I consent to receiving marketing communications based on Aikido’s Privacy Policy.
SOC 2Compliant
ISO 27001Compliant