CVE-2026-105245 sgl-project sglang HTTP Endpoint http_server.py server_info cleartext transmission

Medium 6.3 Published Updated

Remote attackers can intercept API keys transmitted in cleartext via the HTTP endpoint, exposing sensitive credentials.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-105245?

CVE-2026-105245 is a medium-severity vulnerability in sgl-project sglang, published on 5 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability has been found in sgl-project sglang up to 0.5.21. This issue affects the function server_info of the file python/sglang/srt/entrypoints/http_server.py of the component HTTP Endpoint. Such manipulation of the argument api_key leads to cleartext transmission of sensitive information. It is possible to launch the attack remotely. Attacks of this nature are highly complex. The exploitability is assessed as difficult. The exploit has been disclosed to the public and may be used. The pull request to fix this issue awaits acceptance.

Weakness: CWE-319, CWE-310

Which versions are affected by CVE-2026-105245?

Linux distribution packages (1)
python-sglang openSUSE:TumbleweedAll versions0.5.21-2.1

How do I fix CVE-2026-105245?

Apply the vendor's patch.

Is CVE-2026-105245 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105245 exists.

Sources

Also known as GHSA-fr3j-h92j-cm4p, openSUSE-SU-2026:12118-1.

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