CVE-2020-29509 affecting package golang 1.26.7-1

{
  "id": "96eabb8799851a17b2d656c807c0059732874d2f2680f23e6df60e462014bde5",
  "url": "https://osv.dev/vulnerability/AZL-78900",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-29509 affecting package golang 1.26.7-1",
    "summary": "The encoding/xml package in Go (all versions) does not correctly preserve the semantics of attribute namespace prefixes during tokenization round-trips, which allows an attacker to craft inputs that behave in conflicting ways during different stages of processing in affected downstream applications.",
    "evidence": "osv:AZL-78900",
    "products": [
      {
        "name": {
          "value": "golang",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "AZL-78900",
      "aliases": [
        "AZL-78900"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "1.26.7-1"
                }
              ]
            }
          ],
          "package": {
            "name": "golang",
            "purl": "pkg:rpm/azure-linux/golang",
            "ecosystem": "Azure Linux:3"
          },
          "database_specific": {
            "source": "https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-78900.json"
          }
        }
      ],
      "modified": "2026-10-22T05:35:55Z",
      "provider": "osv",
      "upstream": [
        "CVE-2020-29509"
      ],
      "references": [
        "https://nvd.nist.gov/vuln/detail/CVE-2020-29509"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2020-29509",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 404468,
  "published_at": "2020-12-14T20:15:13+00:00"
}