sgl-project SGLang Weight Exporter weight_exporter.py WeightExporter.send_weights_to_remote_instance denial of service
Summary
| CVE | CVE-2026-112083 |
|---|---|
| State | PUBLISHED |
| Assigner | VulDB |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-19 06:17:23 UTC |
| Updated | 2026-10-19 17:17:11 UTC |
| Description | A security flaw has been discovered in sgl-project SGLang up to 0.5.19. Affected is the function WeightExporter.send_weights_to_remote_instance of the file python/sglang/srt/model_executor/model_runner_components/weight_exporter.py of the component Weight Exporter. Performing a manipulation of the argument group_name results in denial of service. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The pull request to fix this issue awaits acceptance. |
Risk And Classification
Primary CVSS: v4.0 5.5 MEDIUM from [email protected]
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.004190000 probability, percentile 0.347720000 (date 2026-10-19)
Problem Types: CWE-404 | CWE-404 Denial of Service
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 5.5 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/C... |
| 4.0 | CNA | DECLARED | 6.9 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P |
| 3.1 | [email protected] | Secondary | 5.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| 3.1 | CNA | DECLARED | 5.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C |
| 3.0 | CNA | DECLARED | 5.3 | MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C |
| 2.0 | [email protected] | Secondary | 5 | AV:N/AC:L/Au:N/C:N/I:N/A:P | |
| 2.0 | CNA | DECLARED | 5 | AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:C |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
NoneUser Interaction
NoneConfidentiality
NoneIntegrity
NoneAvailability
LowSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
LowCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
LowCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Sgl-project | SGLang | affected 0.5.0 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.1 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.2 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.3 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.4 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.5 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.6 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.7 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.8 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.9 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.10 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.11 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.12 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.13 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.14 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.15 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.16 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.17 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.18 | Not specified |
| CNA | Sgl-project | SGLang | affected 0.5.19 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| vuldb.com/submit/1009919 | [email protected] | vuldb.com | |
| github.com/sgl-project/sglang/issues/42073 | [email protected] | github.com | |
| vuldb.com/vuln/421762 | [email protected] | vuldb.com | |
| github.com/sgl-project/sglang/pull/44314 | [email protected] | github.com | |
| vuldb.com/vuln/421762/cti | [email protected] | vuldb.com | |
| vuldb.com/cve/CVE-2026-112083 | [email protected] | vuldb.com | |
| github.com/sgl-project/sglang | [email protected] | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Zyz3366 (VulDB User) (en)
CNA: VulDB CNA Team (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-10-18T00:00:00.000Z | Advisory disclosed |
| CNA | 2026-10-18T02:00:00.000Z | VulDB entry created |
| CNA | 2026-10-18T16:31:53.000Z | VulDB entry last update |
There are currently no legacy QID mappings associated with this CVE.