sgl-project SGLang up to 0.5.19 Session Cleanup session_controller.py Session.create_req denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k1.97

Summaryinfo

A vulnerability classified as problematic has been found in sgl-project SGLang up to 0.5.19. This affects the function Session.create_req of the file python/sglang/srt/session/session_controller.py of the component Session Cleanup. Performing a manipulation results in denial of service. This vulnerability is cataloged as CVE-2026-110809. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The pull request to fix this issue awaits acceptance.

Detailsinfo

A vulnerability was found in sgl-project SGLang up to 0.5.19. It has been classified as problematic. This affects the function Session.create_req of the file python/sglang/srt/session/session_controller.py of the component Session Cleanup. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-110809. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details and a public exploit are known. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The exploit is shared for download at gist.github.com. It is declared as proof-of-concept. The pull request to fix this issue awaits acceptance.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/14/2026 Advisory disclosed
10/14/2026 +0 days VulDB entry created
10/14/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 41470
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-110809 (🔒)
GCVE (CVE): GCVE-0-2026-110809
GCVE (VulDB): GCVE-100-420279
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 10/14/2026 20:25
Changes: 10/14/2026 20:25 (60)
Complete: 🔍
Submitter: Zyz3366
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #1004356: SGLang Project SGLang(SGLang Runtime) 0.5.19 Remote Denial of Service (by Zyz3366)

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