Vulnerability-Lookup

CVE-2026-54150 (GCVE-0-2026-54150)

Vulnerability from cvelistv5 – Published: 2026-09-14 17:25 – Updated: 2026-09-14 19:03

Title

next-video: Unauthenticated arbitrary file read via /api/video request handler

Summary

next-video is a library for adding video to Next.js applications. Prior to 2.8.1, the GET endpoint exported by next-video/request-handler and commonly mounted at /api/video accepts an unauthenticated url query parameter, while src/utils/utils.ts isRemote() treats any value without an HTTP or HTTPS prefix as a local path. src/request-handler.ts passes that value through src/assets.ts getAssetPath() to src/config.ts loadAsset(), which appends a JSON suffix and uses fs.readFile without canonicalizing the path or verifying that it remains inside the configured video folder. A remote attacker can therefore escape the intended asset directory and read JSON files accessible to the application process, including Next.js server-action encryption material, preview-mode keys, build manifests, route metadata, absolute paths, and application video asset identifiers. Applications that do not expose the runtime request handler are not affected through this route. This issue is fixed in version 2.8.1.

Severity

6.9 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-14 19:02 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/muxinc/next-video/security/adv…	x_refsource_CONFIRM
https://github.com/muxinc/next-video/commit/73abf…	x_refsource_MISC
https://github.com/muxinc/next-video/releases/tag…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
muxinc	next-video	Affected: < 2.8.1	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-54150",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-14T19:02:06.435813Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-14T19:03:28.592Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "next-video",
          "vendor": "muxinc",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.8.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "next-video is a library for adding video to Next.js applications. Prior to 2.8.1, the GET endpoint exported by next-video/request-handler and commonly mounted at /api/video accepts an unauthenticated url query parameter, while src/utils/utils.ts isRemote() treats any value without an HTTP or HTTPS prefix as a local path. src/request-handler.ts passes that value through src/assets.ts getAssetPath() to src/config.ts loadAsset(), which appends a JSON suffix and uses fs.readFile without canonicalizing the path or verifying that it remains inside the configured video folder. A remote attacker can therefore escape the intended asset directory and read JSON files accessible to the application process, including Next.js server-action encryption material, preview-mode keys, build manifests, route metadata, absolute paths, and application video asset identifiers. Applications that do not expose the runtime request handler are not affected through this route. This issue is fixed in version 2.8.1."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T17:25:38.429Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/muxinc/next-video/security/advisories/GHSA-2p39-2jf3-fv2q",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/muxinc/next-video/security/advisories/GHSA-2p39-2jf3-fv2q"
        },
        {
          "name": "https://github.com/muxinc/next-video/commit/73abf1d534c2ac48db546ecfed0e89cbaf124f6f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/muxinc/next-video/commit/73abf1d534c2ac48db546ecfed0e89cbaf124f6f"
        },
        {
          "name": "https://github.com/muxinc/next-video/releases/tag/v2.8.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/muxinc/next-video/releases/tag/v2.8.1"
        }
      ],
      "source": {
        "advisory": "GHSA-2p39-2jf3-fv2q",
        "discovery": "UNKNOWN"
      },
      "title": "next-video: Unauthenticated arbitrary file read via /api/video request handler"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-54150",
    "datePublished": "2026-09-14T17:25:38.429Z",
    "dateReserved": "2026-06-11T21:15:33.871Z",
    "dateUpdated": "2026-09-14T19:03:28.592Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-54150",
      "date": "2026-09-19",
      "epss": "0.00371",
      "percentile": "0.31005"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "next-video",
                "vendor": "muxinc",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003c 2.8.1"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "next-video is a library for adding video to Next.js applications. Prior to 2.8.1, the GET endpoint exported by next-video/request-handler and commonly mounted at /api/video accepts an unauthenticated url query parameter, while src/utils/utils.ts isRemote() treats any value without an HTTP or HTTPS prefix as a local path. src/request-handler.ts passes that value through src/assets.ts getAssetPath() to src/config.ts loadAsset(), which appends a JSON suffix and uses fs.readFile without canonicalizing the path or verifying that it remains inside the configured video folder. A remote attacker can therefore escape the intended asset directory and read JSON files accessible to the application process, including Next.js server-action encryption material, preview-mode keys, build manifests, route metadata, absolute paths, and application video asset identifiers. Applications that do not expose the runtime request handler are not affected through this route. This issue is fixed in version 2.8.1."
          }
        ],
        "id": "CVE-2026-54150",
        "lastModified": "2026-09-14T19:17:27.703",
        "metrics": {
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 6.9,
                "baseSeverity": "MEDIUM",
                "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": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/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": "LOW",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-54150",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-14T19:02:06.435813Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-09-14T18:17:52.277",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/muxinc/next-video/commit/73abf1d534c2ac48db546ecfed0e89cbaf124f6f"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/muxinc/next-video/releases/tag/v2.8.1"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/muxinc/next-video/security/advisories/GHSA-2p39-2jf3-fv2q"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Received",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-22"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-54150",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-09-14T19:02:06.435813Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-09-14T19:03:25.256Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "next-video",
              "vendor": "muxinc",
              "versions": [
                {
                  "status": "affected",
                  "version": "\u003c 2.8.1"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "next-video is a library for adding video to Next.js applications. Prior to 2.8.1, the GET endpoint exported by next-video/request-handler and commonly mounted at /api/video accepts an unauthenticated url query parameter, while src/utils/utils.ts isRemote() treats any value without an HTTP or HTTPS prefix as a local path. src/request-handler.ts passes that value through src/assets.ts getAssetPath() to src/config.ts loadAsset(), which appends a JSON suffix and uses fs.readFile without canonicalizing the path or verifying that it remains inside the configured video folder. A remote attacker can therefore escape the intended asset directory and read JSON files accessible to the application process, including Next.js server-action encryption material, preview-mode keys, build manifests, route metadata, absolute paths, and application video asset identifiers. Applications that do not expose the runtime request handler are not affected through this route. This issue is fixed in version 2.8.1."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "baseScore": 6.9,
                "baseSeverity": "MEDIUM",
                "privilegesRequired": "NONE",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "LOW",
                "vulnIntegrityImpact": "NONE"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-22",
                  "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-09-14T17:25:38.429Z",
            "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
            "shortName": "GitHub_M"
          },
          "references": [
            {
              "name": "https://github.com/muxinc/next-video/security/advisories/GHSA-2p39-2jf3-fv2q",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/muxinc/next-video/security/advisories/GHSA-2p39-2jf3-fv2q"
            },
            {
              "name": "https://github.com/muxinc/next-video/commit/73abf1d534c2ac48db546ecfed0e89cbaf124f6f",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/muxinc/next-video/commit/73abf1d534c2ac48db546ecfed0e89cbaf124f6f"
            },
            {
              "name": "https://github.com/muxinc/next-video/releases/tag/v2.8.1",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/muxinc/next-video/releases/tag/v2.8.1"
            }
          ],
          "source": {
            "advisory": "GHSA-2p39-2jf3-fv2q",
            "discovery": "UNKNOWN"
          },
          "title": "next-video: Unauthenticated arbitrary file read via /api/video request handler"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2026-54150",
        "datePublished": "2026-09-14T17:25:38.429Z",
        "dateReserved": "2026-06-11T21:15:33.871Z",
        "dateUpdated": "2026-09-14T19:03:28.592Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-54150

Vulnerability from fkie_nvd - Published: 2026-09-14 18:17 - Updated: 2026-09-14 19:17

Severity

6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/muxinc/next-video/commit/73abf1d534c2ac48db546ecfed0e89cbaf124f6f
	security-advisories@github.com	https://github.com/muxinc/next-video/releases/tag/v2.8.1
	security-advisories@github.com	https://github.com/muxinc/next-video/security/advisories/GHSA-2p39-2jf3-fv2q

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "next-video",
          "vendor": "muxinc",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.8.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "next-video is a library for adding video to Next.js applications. Prior to 2.8.1, the GET endpoint exported by next-video/request-handler and commonly mounted at /api/video accepts an unauthenticated url query parameter, while src/utils/utils.ts isRemote() treats any value without an HTTP or HTTPS prefix as a local path. src/request-handler.ts passes that value through src/assets.ts getAssetPath() to src/config.ts loadAsset(), which appends a JSON suffix and uses fs.readFile without canonicalizing the path or verifying that it remains inside the configured video folder. A remote attacker can therefore escape the intended asset directory and read JSON files accessible to the application process, including Next.js server-action encryption material, preview-mode keys, build manifests, route metadata, absolute paths, and application video asset identifiers. Applications that do not expose the runtime request handler are not affected through this route. This issue is fixed in version 2.8.1."
    }
  ],
  "id": "CVE-2026-54150",
  "lastModified": "2026-09-14T19:17:27.703",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.9,
          "baseSeverity": "MEDIUM",
          "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": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/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": "LOW",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-54150",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-14T19:02:06.435813Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-14T18:17:52.277",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/muxinc/next-video/commit/73abf1d534c2ac48db546ecfed0e89cbaf124f6f"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/muxinc/next-video/releases/tag/v2.8.1"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/muxinc/next-video/security/advisories/GHSA-2p39-2jf3-fv2q"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-2P39-2JF3-FV2Q

Vulnerability from github – Published: 2026-08-20 18:35 – Updated: 2026-08-20 18:35

Summary

next-video: Unauthenticated arbitrary file read via /api/video request handler

Details

Impact

The HTTP route handler exported by next-video/request-handler — which the README instructs consumers to mount at /api/video — allows an unauthenticated remote attacker to read arbitrary .json files from the production filesystem of any application following the documented setup.

The handler's GET endpoint accepts a url query parameter and uses it to locate and serve a JSON asset descriptor from disk. The only guard between "remote URL" and "local file path" is a regex check for ^https?://. Any value that does not match that prefix is treated as a local path, .json is appended, and the file is read with fs.readFile and returned in the HTTP response — with no authentication, no path canonicalization, and no traversal guard.

On a typical Next.js deployment this exposes, at minimum: - The Next.js Server Actions AES encryption key (.next/server/server-reference-manifest.json) - The Next.js Preview/Draft Mode keys (previewModeId, previewModeSigningKey, previewModeEncryptionKey) - Internal build manifests, route registries, and absolute runtime paths - Application-specific asset metadata (e.g. Mux uploadId, assetId, playbackId values stored in videos/*.json)

Any application that mounted /api/video following the documented one-liner is affected.

Patches

2.8.1

Workarounds

Until a patched version is available, wrap the exported handler in your own route file and validate the url parameter before passing it through:

Reject any url value that does not begin with https://, or that does not match a known allowlist of trusted remote hosts.
Alternatively, remove the /api/video route entirely if your application only uses build-time import of local video files and does not use <Video src="https://..."> with string URLs at runtime.

References

src/request-handler.ts — the vulnerable GET handler
src/assets.ts — getAssetPath(), where the local-vs-remote branching occurs
src/utils/utils.ts — isRemote(), the sole guard between the two branches
src/config.ts — loadAsset(), which performs the unconstrained fs.readFile

Severity

6.9 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.8.0"
      },
      "package": {
        "ecosystem": "npm",
        "name": "next-video"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.8.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-54150"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-20T18:35:11Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nThe HTTP route handler exported by `next-video/request-handler` \u2014 which the README instructs consumers to mount at `/api/video` \u2014 allows an unauthenticated remote attacker to read arbitrary `.json` files from the production filesystem of any application following the documented setup.\n\nThe handler\u0027s `GET` endpoint accepts a `url` query parameter and uses it to locate and serve a JSON asset descriptor from disk. The only guard between \"remote URL\" and \"local file path\" is a regex check for `^https?://`. Any value that does not match that prefix is treated as a local path, `.json` is appended, and the file is read with `fs.readFile` and returned in the HTTP response \u2014 with no authentication, no path canonicalization, and no traversal guard.\n\nOn a typical Next.js deployment this exposes, at minimum:\n- The **Next.js Server Actions AES encryption key** (`.next/server/server-reference-manifest.json`)\n- The **Next.js Preview/Draft Mode keys** (`previewModeId`, `previewModeSigningKey`, `previewModeEncryptionKey`)\n- Internal build manifests, route registries, and absolute runtime paths\n- Application-specific asset metadata (e.g. Mux `uploadId`, `assetId`, `playbackId` values stored in `videos/*.json`)\n\nAny application that mounted `/api/video` following the documented one-liner is affected.\n\n### Patches\n\n2.8.1\n\n### Workarounds\n\nUntil a patched version is available, wrap the exported handler in your own route file and validate the `url` parameter before passing it through:\n\n- Reject any `url` value that does not begin with `https://`, or that does not match a known allowlist of trusted remote hosts.\n- Alternatively, remove the `/api/video` route entirely if your application only uses build-time `import` of local video files and does not use `\u003cVideo src=\"https://...\"\u003e` with string URLs at runtime.\n\n### References\n\n- `src/request-handler.ts` \u2014 the vulnerable GET handler\n- `src/assets.ts` \u2014 `getAssetPath()`, where the local-vs-remote branching occurs\n- `src/utils/utils.ts` \u2014 `isRemote()`, the sole guard between the two branches\n- `src/config.ts` \u2014 `loadAsset()`, which performs the unconstrained `fs.readFile`",
  "id": "GHSA-2p39-2jf3-fv2q",
  "modified": "2026-08-20T18:35:11Z",
  "published": "2026-08-20T18:35:11Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/muxinc/next-video/security/advisories/GHSA-2p39-2jf3-fv2q"
    },
    {
      "type": "WEB",
      "url": "https://github.com/muxinc/next-video/commit/73abf1d534c2ac48db546ecfed0e89cbaf124f6f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/muxinc/next-video"
    },
    {
      "type": "WEB",
      "url": "https://github.com/muxinc/next-video/releases/tag/v2.8.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "next-video: Unauthenticated arbitrary file read via /api/video request handler"
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

CVE-2026-54150 (GCVE-0-2026-54150)

FKIE_CVE-2026-54150

GHSA-2P39-2JF3-FV2Q

Impact

Patches

Workarounds

References

Tags

Sightings

Nomenclature

Related by attack behaviour