actions-runner — security advisory

{
  "id": "9c9cb31a671af31758898c31260653712f8b2d9b7a5cbb4bade3a40967b4296e",
  "url": "https://osv.dev/vulnerability/CGA-w432-8f85-2wp3",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CGA-w432-8f85-2wp3",
    "summary": "CGA-w432-8f85-2wp3",
    "evidence": "osv:CGA-w432-8f85-2wp3",
    "products": [
      {
        "name": {
          "value": "actions-runner",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CGA-w432-8f85-2wp3",
      "aliases": [
        "CGA-w432-8f85-2wp3"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        },
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "actions-runner",
            "purl": "pkg:apk/chainguard/actions-runner?arch=x86_64",
            "ecosystem": "Chainguard"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-w432-8f85-2wp3.json"
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "http-cache-semantics",
                "component_purl": "pkg:npm/http-cache-semantics@4.2.0",
                "component_type": "npm",
                "component_version": "4.2.0",
                "component_location": "/usr/share/actions-runner/externals/node24/lib/node_modules/npm/node_modules/http-cache-semantics/package.json",
                "latest_event_status": "false_positive_determination",
                "latest_event_timestamp": "2026-10-06T13:27:53Z"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-07T17:01:45.474863206Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-93748",
        "GHSA-ch52-4w7c-c8xp"
      ],
      "references": [
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93748",
        "https://github.com/kornelski/http-cache-semantics/issues/56",
        "https://github.com/kornelski/http-cache-semantics",
        "https://github.com/kornelski/http-cache-semantics/blob/f01112e954b83cfa8765b633ba880e5e980aa54c/index.js#L425-L441",
        "https://github.com/kornelski/http-cache-semantics/blob/f01112e954b83cfa8765b633ba880e5e980aa54c/index.js#L603-L623",
        "https://www.vulncheck.com/advisories/http-cache-semantics-through-4.2.0-cross-user-cache-disclosure-via-max-stale"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-93748",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/1/score"
  },
  "source_id": "core-osv",
  "document_id": 96097,
  "published_at": "2026-10-03T13:36:07+00:00"
}