synapse — security advisory

{
  "id": "311be192fde637f701e1d642bcd69f9be34e887d9ad22b1639806b3ba284d394",
  "url": "https://osv.dev/vulnerability/CGA-cm66-hf7f-69f6",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CGA-cm66-hf7f-69f6",
    "summary": "CGA-cm66-hf7f-69f6",
    "evidence": "osv:CGA-cm66-hf7f-69f6",
    "products": [
      {
        "name": {
          "value": "synapse",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.164.1-r2",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CGA-cm66-hf7f-69f6",
      "aliases": [
        "CGA-cm66-hf7f-69f6"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.164.1-r2"
                }
              ]
            }
          ],
          "package": {
            "name": "synapse",
            "purl": "pkg:apk/chainguard/synapse?arch=aarch64",
            "ecosystem": "Chainguard"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-cm66-hf7f-69f6.json",
            "chainguard": {
              "applies_to_subpackages": false
            }
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "twisted",
                "component_purl": "pkg:pypi/twisted@26.4.0",
                "component_type": "python",
                "component_version": "26.4.0",
                "component_location": "/opt/synapse/lib/python3.13/site-packages/twisted-26.4.0.dist-info/METADATA",
                "latest_event_status": "fixed",
                "latest_event_timestamp": "2026-10-30T16:15:23Z"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-30T20:46:49.427365774Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-115776",
        "GHSA-53xc-49m8-p798"
      ],
      "references": [
        "https://github.com/twisted/twisted/releases/tag/twisted-26.10.0rc1",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115776.json",
        "https://github.com/twisted/twisted/security/advisories/GHSA-53xc-49m8-p798",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-115776",
        "https://github.com/twisted/twisted/commit/01f8cff7753c1edac132380b2ea939fa6bdbab30",
        "https://github.com/twisted/twisted/commit/ac90fb7b0ab73688a581fcd9a7c0577ec8ca3059",
        "https://github.com/twisted/twisted/pull/12771"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-115776",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 459436,
  "published_at": "2026-10-25T14:10:09+00:00"
}