CVE-2026-7301
Published: May 18, 2026· Updated: May 19, 2026
Official Description
SGLangs multimodal generation runtime scheduler's ROUTER socket binds to 0.0.0.0 by default and contains a sink that calls pickle.loads() on incoming messages, enabling RCE when exposed to the internet.
Risk Analysis
This critical vulnerability in SGLangs multimodal generation runtime allows unauthenticated remote code execution. The scheduler's ROUTER socket binds to 0.0.0.0 by default and insecurely deserializes incoming messages via pickle.loads(), enabling RCE when exposed. With a CVSS score of 9.8, this is an urgent concern.
No public exploit is currently known for this vulnerability. The flaw is remotely exploitable and requires no authentication.
Apply any available patches or updates for SGLangs version 0.5.10 to address this deserialization vulnerability. Configure the ROUTER socket to bind only to trusted interfaces or implement proper authentication and input validation for incoming messages.
Technical Analysis
CVE-2026-7301 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-7301 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts