Description
SGLang contains a DoS vulnerability caused by missing input validation for AUX_DATA ZeroMQ control messages in the Decode worker, which enables an unauthenticated remote attacker with network reachability to the Decode control PULL socket to terminate the Decode control thread and cause a denial of service against the target server.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SGLang | SGLang | ≤ 0.5.15 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python-sglang | 0.5.20-1.1 | openSUSE-SU-2026:11865-1 |
Advisories 1
- openSUSE-SU-2026:11865-1 python313-sglang-0.5.20-1.1 on GA media SUSE / openSUSE Security Updates · Sep 24, 2026