{
  "cveId": "CVE-2026-41054",
  "url": "https://patchblox.com/security/cve/CVE-2026-41054",
  "summary": "CVE-2026-41054 is fixed in 2 products on 1 platform, first by haveged 1.9.14-1ubuntu1\u002Besm1~22.04.1, released May 20, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Missing exit out of permission check in haveged could lead to root exploit",
  "description": "In \u0060src/havegecmd.c\u0060, the \u0060socket_handler\u0060 function performs a credential check on the abstract UNIX socket (\u0060\\0/sys/entropy/haveged\u0060). However, while it detects if the connecting user is not root (\u0060cred.uid != 0\u0060) and prepares a negative acknowledgement (\u0060ASCII_NAK\u0060), it **fails to stop execution**. The code proceeds to the \u0060switch\u0060 statement, allowing any local unprivileged user to execute privileged commands such as \u0060MAGIC_CHROOT\u0060.",
  "published": "2026-05-20T03:16:00Z",
  "severity": "Important",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "cwe": "Authentication Bypass by Primary Weakness",
  "epss": 0.00185,
  "epssPercentile": 0.08103,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41054",
  "fixes": [
    {
      "platform": "linux",
      "product": "haveged",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1.9.14-1\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2026-41054",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-41054",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "haveged",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.9.19-12\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-41054",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-41054",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "haveged",
      "release": "Debian 14",
      "fixedVersion": "1.9.21-1",
      "fix": "DEBIAN-CVE-2026-41054",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-41054",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "haveged",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.9.14-1ubuntu1\u002Besm1~22.04.1",
      "fix": "haveged 1.9.14-1ubuntu1\u002Besm1~22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-haveged-1.9.14-1ubuntu1-esm1-22.04.1",
      "released": "2026-05-20T03:16:00Z"
    },
    {
      "platform": "linux",
      "product": "haveged",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.9.14-1ubuntu2\u002Besm1~24.04.1",
      "fix": "haveged 1.9.14-1ubuntu2\u002Besm1~24.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-haveged-1.9.14-1ubuntu2-esm1-24.04.1",
      "released": "2026-05-20T03:16:00Z"
    },
    {
      "platform": "linux",
      "product": "haveged",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.9.19-12\u002Bdeb13u1build0.25.10.1",
      "fix": "haveged 1.9.19-12\u002Bdeb13u1build0.25.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-haveged-1.9.19-12-deb13u1build0.25.10.1",
      "released": "2026-05-20T03:16:00Z"
    },
    {
      "platform": "linux",
      "product": "haveged",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.9.19-14ubuntu0.1",
      "fix": "haveged 1.9.19-14ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-haveged-1.9.19-14ubuntu0.1",
      "released": "2026-05-20T03:16:00Z"
    },
    {
      "platform": "linux",
      "product": "haveged",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.9.19-bp160.2.1",
      "fix": "OPENSUSE-SU-2026:21958-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21958-1",
      "released": "2026-09-24T14:40:29Z"
    },
    {
      "platform": "linux",
      "product": "libhavege2",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.9.14-1ubuntu1\u002Besm1~22.04.1",
      "fix": "libhavege2 1.9.14-1ubuntu1\u002Besm1~22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libhavege2-1.9.14-1ubuntu1-esm1-22.04.1",
      "released": "2026-05-20T03:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libhavege2",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.9.14-1ubuntu2\u002Besm1~24.04.1",
      "fix": "libhavege2 1.9.14-1ubuntu2\u002Besm1~24.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libhavege2-1.9.14-1ubuntu2-esm1-24.04.1",
      "released": "2026-05-20T03:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libhavege2",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.9.19-12\u002Bdeb13u1build0.25.10.1",
      "fix": "libhavege2 1.9.19-12\u002Bdeb13u1build0.25.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libhavege2-1.9.19-12-deb13u1build0.25.10.1",
      "released": "2026-05-20T03:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libhavege2",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.9.19-14ubuntu0.1",
      "fix": "libhavege2 1.9.19-14ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libhavege2-1.9.19-14ubuntu0.1",
      "released": "2026-05-20T03:16:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T01:44:33Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}