{
  "cveId": "CVE-2026-77584",
  "url": "https://patchblox.com/security/cve/CVE-2026-77584",
  "summary": "CVE-2026-77584 is fixed in tor on 1 platform, first by DEBIAN-CVE-2026-77584, released August 21, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "tor: Tor before 0.4.9.10 did not reject a CONFLUX_LINK cell that arrives on a circuit which already has attached streams",
  "description": "Tor before 0.4.9.10 did not reject a CONFLUX_LINK cell that arrives on a circuit which already has attached streams. A malicious client could send a RELAY_COMMAND_BEGIN before the CONFLUX_LINK on the same circuit, attaching an exit stream that would later end up orphan leaving a dangling circuit back-pointer and a use-after-free (UAF) when the circuit is freed. This is TROVE-2026-025.",
  "published": "2026-08-20T21:17:10Z",
  "severity": "high",
  "cvss": 8.2,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L",
  "epss": 0.0025,
  "epssPercentile": 0.16422,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "tor",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "0.4.9.11-0\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2026-77584",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-77584",
      "released": "2026-08-21T23:37:15Z"
    },
    {
      "platform": "linux",
      "product": "tor",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "0.4.9.11-0\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-77584",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-77584",
      "released": "2026-08-21T23:37:15Z"
    },
    {
      "platform": "linux",
      "product": "tor",
      "release": "Debian 14",
      "fixedVersion": "0.4.9.11-1",
      "fix": "DEBIAN-CVE-2026-77584",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-77584",
      "released": "2026-08-21T23:37:15Z"
    },
    {
      "platform": "linux",
      "product": "tor",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "0.4.9.11-bp160.1.1",
      "fix": "OPENSUSE-SU-2026:21660-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21660-1",
      "released": "2026-08-25T20:46:16Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}