Vulnerability-Lookup

GHSA-328R-MPFV-QC55

Vulnerability from github – Published: 2026-09-30 18:33 – Updated: 2026-09-30 18:33

Details

A 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.

Severity

5.3 (Medium)


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

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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-103241"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-404"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-30T17:16:42Z",
    "severity": "MODERATE"
  },
  "details": "A 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.",
  "id": "GHSA-328r-mpfv-qc55",
  "modified": "2026-09-30T18:33:49Z",
  "published": "2026-09-30T18:33:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-103241"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vllm-project/vllm/issues/50927"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vllm-project/vllm/pull/54303"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vllm-project/vllm/commit/3439bad37e68ba9755a46f4f6b44a4aeaf1f60a9"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/Yunzez/8e98d656aa667095b513161eb056d28e"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vllm-project/vllm"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vllm-project/vllm/releases/tag/v0.29.1rc0"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-103241"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/956250"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/411965"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/411965/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-103241 (GCVE-0-2026-103241)

Vulnerability from cvelistv5 – Published: 2026-09-30 16:45 – Updated: 2026-10-02 16:23 X_Open Source

Title

vllm-project vLLM Gemma4UnifiedParser gemma4.rs denial of service

Summary

Severity

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

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:O/RC:C

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:O/RC:C

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-02 16:23 UTC

CWE

CWE-404 - Denial of Service

Assigner

VulDB mitre root Scorecard

References

10 references

URL	Tags
https://vuldb.com/vuln/411965	vdb-entry
https://vuldb.com/vuln/411965/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-103241	third-party-advisory
https://vuldb.com/submit/956250	third-party-advisory
https://github.com/vllm-project/vllm/issues/50927	issue-tracking
https://github.com/vllm-project/vllm/pull/54303	issue-trackingpatch
https://gist.github.com/Yunzez/8e98d656aa667095b5…	exploit
https://github.com/vllm-project/vllm/commit/3439b…	patch
https://github.com/vllm-project/vllm/releases/tag…	patch
https://github.com/vllm-project/vllm/	product

Impacted products

1 product

Vendor	Product	Version
vllm-project	vLLM	Affected: 0.1 Affected: 0.2 Affected: 0.3 Affected: 0.4 Affected: 0.5 Affected: 0.6 Affected: 0.7 Affected: 0.8 Affected: 0.9 Affected: 0.10 Affected: 0.11 Affected: 0.12 Affected: 0.13 Affected: 0.14 Affected: 0.15 Affected: 0.16 Affected: 0.17 Affected: 0.18 Affected: 0.19 Affected: 0.20 Affected: 0.21 Affected: 0.22 Affected: 0.23 Affected: 0.24 Affected: 0.25 Affected: 0.26.0 Unaffected: 0.29.1rc0 cpe:2.3:a:vllm-project:vllm::::::::

Credits

Zyz3366 (VulDB User)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-103241",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-02T16:23:38.542254Z",
                "version": "2.0.3"
              },
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:vllm-project:vllm:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Gemma4UnifiedParser"
          ],
          "product": "vLLM",
          "vendor": "vllm-project",
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            {
              "status": "affected",
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              "version": "0.2"
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              "status": "affected",
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            },
            {
              "status": "affected",
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            },
            {
              "status": "affected",
              "version": "0.7"
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              "status": "affected",
              "version": "0.8"
            },
            {
              "status": "affected",
              "version": "0.9"
            },
            {
              "status": "affected",
              "version": "0.10"
            },
            {
              "status": "affected",
              "version": "0.11"
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              "status": "affected",
              "version": "0.12"
            },
            {
              "status": "affected",
              "version": "0.13"
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              "status": "affected",
              "version": "0.14"
            },
            {
              "status": "affected",
              "version": "0.15"
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              "status": "affected",
              "version": "0.16"
            },
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              "status": "affected",
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            {
              "status": "affected",
              "version": "0.20"
            },
            {
              "status": "affected",
              "version": "0.21"
            },
            {
              "status": "affected",
              "version": "0.22"
            },
            {
              "status": "affected",
              "version": "0.23"
            },
            {
              "status": "affected",
              "version": "0.24"
            },
            {
              "status": "affected",
              "version": "0.25"
            },
            {
              "status": "affected",
              "version": "0.26.0"
            },
            {
              "status": "unaffected",
              "version": "0.29.1rc0"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Zyz3366 (VulDB User)"
        }
      ],
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          "lang": "en",
          "value": "A 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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "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",
            "version": "4.0"
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        },
        {
          "cvssV3_1": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C",
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            "version": "3.0"
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          "cvssV2_0": {
            "baseScore": 5,
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          }
        }
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      "references": [
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          ],
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        },
        {
          "name": "VDB-411965 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/411965/cti"
        },
        {
          "name": "CVE-2026-103241 | CVE Analysis and Report",
          "tags": [
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          ],
          "url": "https://vuldb.com/cve/CVE-2026-103241"
        },
        {
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          "time": "2026-09-30T12:42:01.000Z",
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  "cveMetadata": {
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    "datePublished": "2026-09-30T16:45:13.581Z",
    "dateReserved": "2026-09-30T10:36:13.164Z",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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GHSA-328R-MPFV-QC55

CVE-2026-103241 (GCVE-0-2026-103241)

Tags

Sightings

Nomenclature

Related by attack behaviour