FKIE_CVE-2026-55874

Vulnerability from fkie_nvd - Published: 2026-07-08 15:16 - Updated: 2026-07-08 18:16
Severity
7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Summary
SeaweedFS is a distributed storage system. Prior to 4.34, the S3 API gateway does not reject dot-dot path segments in the X-Amz-Copy-Source header used by CopyObject and UploadPartCopy, allowing an authenticated identity scoped to one bucket to read objects from other buckets through server-side copy. This issue is fixed in version 4.34.
References
security-advisories@github.comhttps://github.com/seaweedfs/seaweedfs/commit/b44cf51fe931bd75aa4d37ae766bea90d7f85ccd
security-advisories@github.comhttps://github.com/seaweedfs/seaweedfs/pull/9929
security-advisories@github.comhttps://github.com/seaweedfs/seaweedfs/releases/tag/4.34
security-advisories@github.comhttps://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-56wq-x3wv-3ff4
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "seaweedfs",
          "vendor": "seaweedfs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4.34"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "SeaweedFS is a distributed storage system. Prior to 4.34, the S3 API gateway does not reject dot-dot path segments in the X-Amz-Copy-Source header used by CopyObject and UploadPartCopy, allowing an authenticated identity scoped to one bucket to read objects from other buckets through server-side copy. This issue is fixed in version 4.34."
    }
  ],
  "id": "CVE-2026-55874",
  "lastModified": "2026-07-08T18:16:33.270",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 4.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-55874",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-08T16:52:14.324777Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-08T15:16:30.320",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/seaweedfs/seaweedfs/commit/b44cf51fe931bd75aa4d37ae766bea90d7f85ccd"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/seaweedfs/seaweedfs/pull/9929"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/seaweedfs/seaweedfs/releases/tag/4.34"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-56wq-x3wv-3ff4"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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