Description

http4k is a functional toolkit for Kotlin HTTP applications. Prior to version 5.41.0.0, there is a potential XXE (XML External Entity Injection) vulnerability when http4k handling malicious XML contents within requests, which might allow attackers to read local sensitive information on server, trigger Server-side Request Forgery and even execute code under some circumstances. Version 5.41.0.0 contains a patch for the issue.

Classification

CVE ID: CVE-2024-55875

CVSS Base Severity: CRITICAL

CVSS Base Score: 9.8

Affected Products

Vendor: http4k

Product: http4k

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.07% (probability of being exploited)

EPSS Percentile: 32.0% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://github.com/http4k/http4k/security/advisories/GHSA-7mj5-hjjj-8rgw
https://github.com/http4k/http4k/commit/35297adc6d6aca4951d50d8cdf17ff87a8b19fbc
https://github.com/http4k/http4k/blob/25696dff2d90206cc1da42f42a1a8dbcdbcdf18c/core/format/xml/src/main/kotlin/org/http4k/format/Xml.kt#L42-L46

Timeline