CVE-2026-86019

Part-DB: Attachment Size Limit Bypass via API Base64 Upload

Medium 5.3

Part-DB is an open source inventory management system for electronic components. Prior to version 2.13.2, Part-DB allows authenticated API users to bypass the configured maximum attachment file size by uploading attachments through the API using base64-encoded file data. The application enforces the configured attachment size limit for normal browser-based file uploads, but the API base64 upload path does not apply the same size validation. As a result, an authenticated user with API access and permission to create attachments can upload files larger than the configured maximum attachment size, potentially exhausting disk space and causing a denial of service. This issue has been patched in version 2.13.2.

Assigner
GitHub_M

Published
2026-10-23

Updated
2026-10-23

Reserved
2026-09-04

Scores

Source	CVSS	Score	Severity	Vector
GitHub_M	4.0	5.3	Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Weaknesses

Affected

Vendor	Product	Versions
Part-DB	Part-DB-server	< 2.13.2 (affected)

References

https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-8fvw-xrgv-jq4w x_refsource_CONFIRM
https://github.com/Part-DB/Part-DB-server/releases/tag/v2.13.2 x_refsource_MISC

Full CVE JSON record (5.2)

API · GitHub · cve.org

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Part-DB-server",
          "vendor": "Part-DB",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.13.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Part-DB is an open source inventory management system for electronic components. Prior to version 2.13.2, Part-DB allows authenticated API users to bypass the configured maximum attachment file size by uploading attachments through the API using base64-encoded file data. The application enforces the configured attachment size limit for normal browser-based file uploads, but the API base64 upload path does not apply the same size validation. As a result, an authenticated user with API access and permission to create attachments can upload files larger than the configured maximum attachment size, potentially exhausting disk space and causing a denial of service. This issue has been patched in version 2.13.2."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-23T04:04:02.426Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-8fvw-xrgv-jq4w",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-8fvw-xrgv-jq4w"
        },
        {
          "name": "https://github.com/Part-DB/Part-DB-server/releases/tag/v2.13.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Part-DB/Part-DB-server/releases/tag/v2.13.2"
        }
      ],
      "source": {
        "advisory": "GHSA-8fvw-xrgv-jq4w",
        "discovery": "UNKNOWN"
      },
      "title": "Part-DB: Attachment Size Limit Bypass via API Base64 Upload"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-86019",
    "datePublished": "2026-10-23T04:04:02.426Z",
    "dateReserved": "2026-09-04T19:23:40.691Z",
    "dateUpdated": "2026-10-23T04:04:02.426Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}