CVE-2025-52479 HTTP.jl vulnerable to CR/LF Injection in URIs
Attackers can inject CR/LF characters into URIs, potentially leading to header injection or request smuggling if input is not validated.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-52479?
CVE-2025-52479 is a high-severity vulnerability in JuliaWeb HTTP.jl, published on 25 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
HTTP.jl provides HTTP client and server functionality for Julia, and URIs.jl parses and works with Uniform Resource Identifiers (URIs). URIs.jl prior to version 1.6.0 and HTTP.jl prior to version 1.10.17 allows the construction of URIs containing CR/LF characters. If user input was not otherwise escaped or protected, this can lead to a CRLF injection attack. Users of HTTP.jl should upgrade immediately to HTTP.jl v1.10.17, and users of URIs.jl should upgrade immediately to URIs.jl v1.6.0. The check for valid URIs is now in the URI.jl package, and the latest version of HTTP.jl incorporates that fix. As a workaround, manually validate any URIs before passing them on to functions in this package.
Which versions are affected by CVE-2025-52479?
How do I fix CVE-2025-52479?
Upgrade to a fixed version.
Is CVE-2025-52479 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-52479 exists.
Sources
Also known as GHSA-4g68-4pxg-mw93, JLSEC-2025-1.