JweDirectDecryptorBlock.Decrypt: unchecked _thales_aad length header reachable with forged tag → index-out-of-range / slice-bounds panic and unbounded allocation

{
  "id": "00702704e2b9b18cb0798bf20f98efa1b62285d46e331df13099e28954f7359b",
  "url": "https://osv.dev/vulnerability/CVE-2026-89319",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "JweDirectDecryptorBlock.Decrypt: unchecked _thales_aad length header reachable with forged tag → index-out-of-range / slice-bounds panic and unbounded allocation",
    "summary": "`JweDirectDecryptorBlock.Decrypt` read a 64-bit plaintext length from the `_thales_aad` protected-header field and used it without any validation. A truncated field panics `binary.BigEndian.Uint64`, an oversized value drives an unbounded allocation, and a value larger than the decrypted block panics with a slice-bounds error.",
    "evidence": "osv:CVE-2026-89319",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-89319",
      "aliases": [
        "CVE-2026-89319",
        "GHSA-4gj8-hg2r-gw6q"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/eclipse-keypont/gose",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4b6dc6c722b20dc24cac70da52704b6027810e69"
                },
                {
                  "last_affected": "bc195a14438f6607e266d8a12e529260272b060b"
                },
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3d12061410a75212322bd51c7c91a56b7dfbcea6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0.9.0"
                      },
                      {
                        "last_affected": "0.13.0-rc1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.0.0-rc1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.12.1-rc1",
            "v0.12.0",
            "v0.13.0-rc1",
            "v0.10.0",
            "v0.9.1",
            "v0.9.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89319.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.532669418Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89319.json",
        "https://github.com/eclipse-keypont/gose/security/advisories/GHSA-4gj8-hg2r-gw6q",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-89319"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-129"
        ],
        "cna_assigner": "eclipse",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89319.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-89319",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 519066,
  "published_at": "2026-10-23T08:54:37.681+00:00"
}