Vulnerability in Sgl-Project Sglang
CVE-2026-112266
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/sgl-project/sglang/issues/45002 (issue-tracking)
- github.com/sgl-project/sglang/issues/41474 (issue-tracking)
- github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/managers/scheduler… (technical-description)
- github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/managers/tokenizer… (technical-description)
- github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/managers/tokenizer… (technical-description)
- www.vulncheck.com/advisories/sglang-through-0.5.22-cross-request-abort-via-rid-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-112266?
- CVE-2026-112266 is a medium-severity vulnerability in Sgl-Project Sglang, classified under Partial String Comparison. CVSS score: 5.9/10. Published 2026-10-19.
- How severe is CVE-2026-112266?
- Medium severity. CVSS v3 base score is 5.9 out of 10.