CVE-2026-110809
sgl-project SGLang Session Cleanup session_controller.py Session.create_req denial of service
sgl-project SGLang
CVSS
5.3MediumExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 15 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.32%Chance of exploitation activity in the next 30 days, higher than 24% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
A security vulnerability has been detected in sgl-project SGLang up to 0.5.19. Affected by this issue is the function Session.create_req of the file python/sglang/srt/session/session_controller.py of the component Session Cleanup. Such manipulation leads to denial of service. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The pull request to fix this issue awaits acceptance.
Text from CVE List
Affected versions 20
- SGLangaffected: 0.5.0CVE List
- SGLangaffected: 0.5.1CVE List
- SGLangaffected: 0.5.2CVE List
- SGLangaffected: 0.5.3CVE List
- SGLangaffected: 0.5.4CVE List
- SGLangaffected: 0.5.5CVE List
- SGLangaffected: 0.5.6CVE List
- SGLangaffected: 0.5.7CVE List
- SGLangaffected: 0.5.8CVE List
- SGLangaffected: 0.5.9CVE List
- SGLangaffected: 0.5.10CVE List
- SGLangaffected: 0.5.11CVE List
- SGLangaffected: 0.5.12CVE List
- SGLangaffected: 0.5.13CVE List
- SGLangaffected: 0.5.14CVE List
- SGLangaffected: 0.5.15CVE List
- SGLangaffected: 0.5.16CVE List
- SGLangaffected: 0.5.17CVE List
- SGLangaffected: 0.5.18CVE List
- SGLangaffected: 0.5.19CVE List
References 8
- github.com/sgl-project/sglang/pull/41483Fixvia CVE List
- vuldb.com/cve/CVE-2026-110809Advisoryvia CVE List
- vuldb.com/submit/1004356Advisoryvia CVE List
- gist.github.com/Yunzez/dbd254603fa2bc74358cb3647423d0ec#file-repro_sglang_session_replace_crash-pyExploitvia CVE List
- vuldb.com/vuln/420279Referencevia CVE List
- vuldb.com/vuln/420279/ctiReferencevia CVE List
- github.com/sgl-project/sglang/issues/41470Referencevia CVE List
- github.com/sgl-project/sglang/Referencevia CVE List