CVE-2026-112266
CVE-2026-112266 · SGLang through 0.5.22 Cross-Request Abort via rid Prefix Matching
This page contains facts from public vulnerability sources. Check the original advisory before updating.
SGLang through 0.5.22 contains a denial of service vulnerability that allows API clients to abort other users' in-flight generation requests by supplying a short client-controlled rid. Attackers can submit streaming /generate requests with single hex character rids and disconnect, triggering prefix-matching abort logic that terminates all other clients' requests.
CVSS 8.2 · High · EPSS 0.4%
- Published
- Updated
Affected products and versions
sglang
- Versions
- ≥ 0, ≤ 0.5.22: Affected (semver)
No fix published
Original sources
- https://github.com/sgl-project/sglang/issues/45002
- https://github.com/sgl-project/sglang/issues/41474
- https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/managers/scheduler.py#L5458-L5590
- https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/managers/tokenizer_manager.py#L2425-L2436
- https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/managers/tokenizer_manager.py#L2240-L2256
- https://www.vulncheck.com/advisories/sglang-through-0.5.22-cross-request-abort-via-rid-prefix-matching
- https://nvd.nist.gov/vuln/detail/CVE-2026-112266