CVE-2026-112266
mediumSGLang 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 sho…
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/managers/scheduler.py... disclosure@vulncheck.com
- https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/managers/tokenizer_ma... disclosure@vulncheck.com
- https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/managers/tokenizer_ma... disclosure@vulncheck.com
- https://github.com/sgl-project/sglang/issues/41474 disclosure@vulncheck.com
- https://github.com/sgl-project/sglang/issues/45002 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/sglang-through-0.5.22-cross-request-abort-via-rid-pre... disclosure@vulncheck.com
- https://github.com/sgl-project/sglang/issues/41474 134c704f-9b21-4f2e-91b3-4a467353bcc0