CVE-2025-61689 HTTP.jl vulnerable to Header injection/Response splitting via header construction.

High 8.7 Published Updated
Exploited in the wild
Not known
Fix
Available

What is CVE-2025-61689?

CVE-2025-61689 is a high-severity vulnerability in JuliaWeb HTTP.jl, published on 10 Oct 2025.

Official description

HTTP.jl is an HTTP client and server functionality for the Julia programming language. Prior to version 1.10.19, HTTP.jl did not validate header names/values for illegal characters, allowing CRLF-based header injection and response splitting. This enables HTTP response splitting and header injection, leading to cache poisoning, XSS, session fixation, and more. This issue is fixed in HTTP.jl `v1.10.19`.

Weakness: CWE-113

Which versions are affected by CVE-2025-61689?

How do I fix CVE-2025-61689?

Upgrade to a fixed version.

Is CVE-2025-61689 being exploited?

There is no known exploitation of CVE-2025-61689 in the wild and no public exploit code.

Sources

Also known as GHSA-h3x8-ppwj-6vcj, JLSEC-2025-40.

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