Vulnerability-Lookup

CVE-2026-63764 (GCVE-0-2026-63764)

Vulnerability from cvelistv5 – Published: 2026-07-21 20:36 – Updated: 2026-09-17 18:57 X_Open Source

Title

LMDeploy Server-Side Request Forgery via HTTP Redirect Bypass

Summary

LMDeploy through 0.14.0, fixed in commit 03c3130, contains a server-side request forgery (SSRF) vulnerability in the _load_http_url function within the connection.py media handler, where the private-IP guard validates only the original URL without re-validating hosts after HTTP redirects. An unauthenticated attacker can submit a crafted image_url to the chat completions endpoint pointing to an attacker-controlled host that returns a redirect to a private IP or cloud-metadata endpoint, causing the server to follow the redirect and expose internal service content through the model pipeline.

Severity

7.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N

8.6 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-23 14:12 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 7155 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/InternLM/lmdeploy/issues/4761	technical-descriptionexploitissue-tracking
https://github.com/InternLM/lmdeploy/pull/4734	issue-trackingpatch
https://github.com/InternLM/lmdeploy/commit/03c31…	patch
https://www.vulncheck.com/advisories/lmdeploy-ser…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
InternLM	lmdeploy	Affected: 0 , ≤ 0.14.0 (semver) Unaffected: 03c313006d17cc3feae86b633c44206a997c44db (git) cpe:2.3:a:internlm:lmdeploy::::::::

Date Public

2026-07-18 00:00

Credits

George Chen

Show details on NVD website

JSON

To clipboard

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        "cveId": "CVE-2026-63764",
        "datePublished": "2026-07-21T20:36:58.372Z",
        "dateReserved": "2026-07-18T12:34:08.780Z",
        "dateUpdated": "2026-09-17T18:57:27.785Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-63764

Vulnerability from fkie_nvd - Published: 2026-07-21 21:16 - Updated: 2026-10-24 19:10

Severity

8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Summary

References

URL	Tags
disclosure@vulncheck.com	https://github.com/InternLM/lmdeploy/commit/03c313006d17cc3feae86b633c44206a997c44db	Patch
disclosure@vulncheck.com	https://github.com/InternLM/lmdeploy/issues/4761	Exploit, Issue Tracking, Mitigation
disclosure@vulncheck.com	https://github.com/InternLM/lmdeploy/pull/4734	Issue Tracking, Patch
disclosure@vulncheck.com	https://www.vulncheck.com/advisories/lmdeploy-server-side-request-forgery-via-http-redirect-bypass	Exploit, Patch, Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/InternLM/lmdeploy/issues/4761	Exploit, Issue Tracking, Mitigation

Impacted products

	Vendor	Product	Version
	internlm	lmdeploy	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:pypi/lmdeploy",
          "product": "lmdeploy",
          "repo": "https://github.com/InternLM/lmdeploy",
          "vendor": "InternLM",
          "versions": [
            {
              "lessThanOrEqual": "0.14.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "03c313006d17cc3feae86b633c44206a997c44db",
              "versionType": "git"
            }
          ]
        }
      ],
      "source": "disclosure@vulncheck.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:internlm:lmdeploy:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7D6EA536-0BEC-4D30-9C54-6095241EA09D",
              "versionEndIncluding": "0.14.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "LMDeploy through 0.14.0, fixed in commit 03c3130, contains a server-side request forgery (SSRF) vulnerability in the _load_http_url function within the connection.py media handler, where the private-IP guard validates only the original URL without re-validating hosts after HTTP redirects. An unauthenticated attacker can submit a crafted image_url to the chat completions endpoint pointing to an attacker-controlled host that returns a redirect to a private IP or cloud-metadata endpoint, causing the server to follow the redirect and expose internal service content through the model pipeline."
    },
    {
      "lang": "es",
      "value": "LMDeploy hasta la versi\u00f3n 0.14.0, corregido en el commit 03c3130, contiene una vulnerabilidad de falsificaci\u00f3n de petici\u00f3n del lado del servidor (SSRF) en la funci\u00f3n _load_http_url dentro del gestor de medios connection.py, donde la protecci\u00f3n de IP privada valida solo la URL original sin revalidar los hosts despu\u00e9s de las redirecciones HTTP. Un atacante no autenticado puede enviar una image_url manipulada al endpoint de finalizaci\u00f3n de chat apuntando a un host controlado por el atacante que devuelve una redirecci\u00f3n a una IP privada o a un endpoint de metadatos de la nube, haciendo que el servidor siga la redirecci\u00f3n y exponga contenido de servicio interno a trav\u00e9s de la pipeline del modelo."
    }
  ],
  "id": "CVE-2026-63764",
  "lastModified": "2026-10-24T19:10:00.127",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.0,
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-63764",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-23T14:12:09.324972Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-21T21:16:53.350",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/InternLM/lmdeploy/commit/03c313006d17cc3feae86b633c44206a997c44db"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Mitigation"
      ],
      "url": "https://github.com/InternLM/lmdeploy/issues/4761"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/InternLM/lmdeploy/pull/4734"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Exploit",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://www.vulncheck.com/advisories/lmdeploy-server-side-request-forgery-via-http-redirect-bypass"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Mitigation"
      ],
      "url": "https://github.com/InternLM/lmdeploy/issues/4761"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-RQHF-RG9P-W5GG

Vulnerability from github – Published: 2026-07-21 21:32 – Updated: 2026-07-23 18:30

Details

lmdeploy's OpenAI-compatible API server contains a server-side request forgery vulnerability that allows unauthenticated attackers to access internal services and cloud metadata endpoints by supplying a crafted image_url that redirects to internal targets. Attackers can send a POST request to the chat completions endpoint with an image_url pointing to an attacker-controlled server that responds with an HTTP 302 redirect to internal addresses such as loopback or instance-metadata endpoints, bypassing the initial URL safety check because redirects are followed without re-validating each hop through the safety guard.

Severity

9.3 (Critical)


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

9.2 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-63764"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-21T21:16:53Z",
    "severity": "CRITICAL"
  },
  "details": "lmdeploy\u0027s OpenAI-compatible API server contains a server-side request forgery vulnerability that allows unauthenticated attackers to access internal services and cloud metadata endpoints by supplying a crafted image_url that redirects to internal targets. Attackers can send a POST request to the chat completions endpoint with an image_url pointing to an attacker-controlled server that responds with an HTTP 302 redirect to internal addresses such as loopback or instance-metadata endpoints, bypassing the initial URL safety check because redirects are followed without re-validating each hop through the safety guard.",
  "id": "GHSA-rqhf-rg9p-w5gg",
  "modified": "2026-07-23T18:30:56Z",
  "published": "2026-07-21T21:32:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63764"
    },
    {
      "type": "WEB",
      "url": "https://github.com/InternLM/lmdeploy/issues/4761"
    },
    {
      "type": "WEB",
      "url": "https://github.com/InternLM/lmdeploy/pull/4734"
    },
    {
      "type": "WEB",
      "url": "https://github.com/InternLM/lmdeploy/commit/03c313006d17cc3feae86b633c44206a997c44db"
    },
    {
      "type": "WEB",
      "url": "https://github.com/InternLM/lmdeploy"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/lmdeploy-server-side-request-forgery-via-http-redirect-bypass"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/lmdeploy-server-side-request-forgery-via-http-redirect-bypass-of-private-ip-guard-in-vision-image-fetch"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L/E:X/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"
    }
  ]
}

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.

Vulnerability timeline

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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.
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Action not permitted

CVE-2026-63764 (GCVE-0-2026-63764)

FKIE_CVE-2026-63764

GHSA-RQHF-RG9P-W5GG

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