CVE-2026-54148
High
Description
http4k is a functional toolkit for Kotlin HTTP applications. Prior to 4.51.0.0, 5.42.0.0, and 6.50.0.0, DigestAuthProvider.verify in http4k-security-digest does not compare the uri parameter in an Authorization: Digest response with the actual request URL. An attacker who captures a valid Digest authentication response can replay it against another URL served by the same realm, bypassing the per-request-URI binding and potentially gaining unauthorized read or write access. This issue is fixed in versions 4.51.0.0, 5.42.0.0, and 6.50.0.0.
SeverityHigh
CVSS8.1
Exploit probability—
ProductOrg.http4k:http4k-security-digest
PublishedSep 18, 2026
First seenSep 18, 2026
Weakness typeCWE-294CWE-294
How to fix
Update
- org.http4k:http4k-security-digest6.50.0.0, 5.42.0.0, 4.51.0.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| org.http4k:http4k-security-digestMaven | 6.0.0.0 ≤ v < 6.50.0.0, 5.0.0.0 ≤ v < 5.42.0.0, 4.0.0.0 ≤ v < 4.51.0.0 | 6.50.0.0, 5.42.0.0, 4.51.0.0 |
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