{
  "cveId": "CVE-2026-53525",
  "url": "https://patchblox.com/security/cve/CVE-2026-53525",
  "summary": "CVE-2026-53525 is fixed in weechat on 1 platform, first by DEBIAN-CVE-2026-53525, released August 18, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "weechat: WeeChat (Wee Enhanced Environment for Chat) is a free chat client",
  "description": "WeeChat (Wee Enhanced Environment for Chat) is a free chat client. In versions 0.3.1 through 4.9.0, the WeeChat relay authentication uses non-constant-time string comparison functions (weechat_strcasecmp and strcmp) to verify password hashes and plaintext passwords. An attacker can exploit timing differences to extract the server-computed hash character by character, then authenticate using the correct hash without knowing the password. Version 4.9.1 fixes the issue.",
  "published": "2026-08-20T16:20:15Z",
  "severity": "high",
  "cvss": 7.4,
  "cvssVector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
  "epss": 0.00432,
  "epssPercentile": 0.37653,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "weechat",
      "release": "Debian 14",
      "fixedVersion": "4.9.3-1",
      "fix": "DEBIAN-CVE-2026-53525",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-53525",
      "released": "2026-08-18T23:07:56Z"
    },
    {
      "platform": "linux",
      "product": "weechat",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "4.10.0-bp160.1.1",
      "fix": "OPENSUSE-SU-2026:21615-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21615-1",
      "released": "2026-08-20T16:20:15Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}