vllm-project vLLM Gemma4UnifiedParser gemma4.rs denial of service

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-103241
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-30 17:16:42 UTC
Updated2026-09-30 17:31:44 UTC
DescriptionA flaw has been found in vllm-project vLLM up to 0.26.0. This vulnerability affects unknown code of the file rust/src/parser/src/unified/gemma4.rs of the component Gemma4UnifiedParser. Executing a manipulation can lead to denial of service. The attack may be launched remotely. The exploit has been published and may be used. Upgrading to version 0.29.1rc0 is able to resolve this issue. This patch is called 3439bad37e68ba9755a46f4f6b44a4aeaf1f60a9. Upgrading the affected component is advised.

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

Problem Types: CWE-404 | CWE-404 Denial of Service

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary5.5MEDIUMCVSS: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...
4.0CNADECLARED6.9MEDIUMCVSS: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]Primary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
3.0CNADECLARED5.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
2.0[email protected]Secondary5AV:N/AC:L/Au:N/C:N/I:N/A:P
2.0CNADECLARED5AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Vllm-project VLLM affected 0.1 Not specified
CNA Vllm-project VLLM affected 0.2 Not specified
CNA Vllm-project VLLM affected 0.3 Not specified
CNA Vllm-project VLLM affected 0.4 Not specified
CNA Vllm-project VLLM affected 0.5 Not specified
CNA Vllm-project VLLM affected 0.6 Not specified
CNA Vllm-project VLLM affected 0.7 Not specified
CNA Vllm-project VLLM affected 0.8 Not specified
CNA Vllm-project VLLM affected 0.9 Not specified
CNA Vllm-project VLLM affected 0.10 Not specified
CNA Vllm-project VLLM affected 0.11 Not specified
CNA Vllm-project VLLM affected 0.12 Not specified
CNA Vllm-project VLLM affected 0.13 Not specified
CNA Vllm-project VLLM affected 0.14 Not specified
CNA Vllm-project VLLM affected 0.15 Not specified
CNA Vllm-project VLLM affected 0.16 Not specified
CNA Vllm-project VLLM affected 0.17 Not specified
CNA Vllm-project VLLM affected 0.18 Not specified
CNA Vllm-project VLLM affected 0.19 Not specified
CNA Vllm-project VLLM affected 0.20 Not specified
CNA Vllm-project VLLM affected 0.21 Not specified
CNA Vllm-project VLLM affected 0.22 Not specified
CNA Vllm-project VLLM affected 0.23 Not specified
CNA Vllm-project VLLM affected 0.24 Not specified
CNA Vllm-project VLLM affected 0.25 Not specified
CNA Vllm-project VLLM affected 0.26.0 Not specified
CNA Vllm-project VLLM unaffected 0.29.1rc0 Not specified

References

ReferenceSourceLinkTags
vuldb.com/vuln/411965 [email protected] vuldb.com
vuldb.com/submit/956250 [email protected] vuldb.com
github.com/vllm-project/vllm/pull/54303 [email protected] github.com
github.com/vllm-project/vllm/issues/50927 [email protected] github.com
github.com/vllm-project/vllm/commit/3439bad37e68ba9755a46f4f6b44a4aeaf1f... [email protected] github.com
github.com/vllm-project/vllm/releases/tag/v0.29.1rc0 [email protected] github.com
gist.github.com/Yunzez/8e98d656aa667095b513161eb056d28e [email protected] gist.github.com
vuldb.com/vuln/411965/cti [email protected] vuldb.com
github.com/vllm-project/vllm [email protected] github.com
vuldb.com/cve/CVE-2026-103241 [email protected] vuldb.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)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-30T00:00:00.000ZAdvisory disclosed
CNA2026-09-30T02:00:00.000ZVulDB entry created
CNA2026-09-30T12:42:01.000ZVulDB entry last update

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