CVE-2026-107686

{
  "etk_id": "ETK-2026-2003",
  "cve_id": "CVE-2026-107686",
  "display_id": "CVE-2026-107686",
  "ghsa_id": "GHSA-wx44-9m3m-rjqx",
  "euvd_id": "EUVD-2026-103987",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authorization bypass for locked-issue reactions in Gitea",
  "summary": "Gitea's web interface may let authenticated users with view-only access add or remove reactions on locked issues and their comments. This can undermine a lock's intended interaction restriction, although it does not permit changing issue or comment content; the user must be signed in and able to read the affected issue.",
  "mitigation": "Upgrade gitea.dev to 28.2.0 or later.",
  "vendor": "Gitea",
  "product": "Gitea",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 28.1.0"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "28.2.0"
      ],
      "package_name": "gitea.dev",
      "purl": "pkg:golang/gitea.dev"
    }
  ],
  "cwes": null,
  "cvss_score": 4.3,
  "cvss_src": "nvd",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
  "epss_score": 0.0024,
  "epss_percentile": 0.1383,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 20.747948516666668,
  "t0_at": "2026-10-18T18:56:59.087000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-18T19:37:10.042993+00:00",
      "days": 0.027904583252314815,
      "is_lower_bound": false,
      "measured_at": "2026-10-18T18:56:59.087000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-18T18:56:59.087000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-18T18:56:59.087000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-107686"
    }
  }
}