CVE-2026-112266
SGLang through 0.5.22 Cross-Request Abort via rid Prefix Matching
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-187 |
| Vendor | sgl-project |
| Product | sglang |
| Published | Oct 19, 2026 |
| Last Updated | Oct 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
sgl-project / sglang
0 ≤ 0.5.22
References
github.com: https://github.com/sgl-project/sglang/issues/45002 github.com: https://github.com/sgl-project/sglang/issues/41474 github.com: https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/managers/scheduler.py#L5458-L5590 github.com: https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/managers/tokenizer_manager.py#L2425-L2436 github.com: https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/managers/tokenizer_manager.py#L2240-L2256 vulncheck.com: https://www.vulncheck.com/advisories/sglang-through-0.5.22-cross-request-abort-via-rid-prefix-matching
Credits
Mingkai Yu Jiadai Wang Qiang Fu Jiajia Liu