CVE-2026-81869 affecting package docker-buildx 0.14.0-17

{
  "id": "401be209e6d92a4b0992ccaa9e9ed0deb76ebcd52dc463a292dfd68f5c6451b3",
  "url": "https://osv.dev/vulnerability/AZL-103155",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-81869 affecting package docker-buildx 0.14.0-17",
    "summary": "OpenTelemetry-Go is the Go implementation of OpenTelemetry. From version 1.10.0 until 1.33.0, the sdk/trace/span.go attribute truncation path can fail to enforce AttributeValueLengthLimit for string and string-slice attributes containing the valid Unicode replacement character U+FFFD. safeTruncateValidUTF8 treats the valid replacement rune as invalid UTF-8 and returns the original input, while strings.ToValidUTF8 leaves that valid rune unchanged, so a second safeTruncate attempt can also return the oversized value. An attacker who controls span attribute content can retain values longer than the configured limit, increasing per-span memory use and weakening denial-of-service protection in the instrumented process. This issue is fixed in version 1.33.0.",
    "evidence": "osv:AZL-103155",
    "products": [
      {
        "name": {
          "value": "docker-buildx",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "AZL-103155",
      "aliases": [
        "AZL-103155"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "0.14.0-17"
                }
              ]
            }
          ],
          "package": {
            "name": "docker-buildx",
            "purl": "pkg:rpm/azure-linux/docker-buildx",
            "ecosystem": "Azure Linux:3"
          },
          "database_specific": {
            "source": "https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-103155.json"
          }
        }
      ],
      "modified": "2026-10-15T05:37:09Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-81869"
      ],
      "references": [
        "https://nvd.nist.gov/vuln/detail/CVE-2026-81869"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-81869",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 321254,
  "published_at": "2026-09-16T21:17:22+00:00"
}