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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 8
https://gist.github.com/Yunzez/dbd254603fa2bc74358cb3647423d0ec#file-repro_sgla…
cna@vuldb.com
https://github.com/sgl-project/sglang/
cna@vuldb.com
https://github.com/sgl-project/sglang/issues/41470
cna@vuldb.com
https://github.com/sgl-project/sglang/pull/41483
cna@vuldb.com
https://vuldb.com/cve/CVE-2026-110809
cna@vuldb.com
https://vuldb.com/submit/1004356
cna@vuldb.com
https://vuldb.com/vuln/420279
cna@vuldb.com
https://vuldb.com/vuln/420279/cti
cna@vuldb.com