{
  "cveId": "CVE-2026-103658",
  "url": "https://patchblox.com/security/cve/CVE-2026-103658",
  "summary": "CVE-2026-103658 is fixed in 4 products on 1 platform, first by RHSA-2026:92615, released October 30, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "GNU Aspell 0.60.8.2 (first vulnerable version is not known) contains a heap-based buffer overflow write (CWE-122) in its read-only dictionary loader. String::reserve() in common/string.hpp computes its capacity check with a signed int ((int)s \u002B 1), so a requested size of 0x7FFFFFFF wraps negative and the backing buffer is never grown. ReadOnlyDict::load() in modules/speller/default/readonly_ws.cpp passes the unvalidated 32-bit size fields from a .rws dictionary header into this path, so a crafted .rws file with a valid endian marker (12345678) and an oversized length field (e.g. lang_name_size = 0x7FFFFFFF) causes attacker-controlled data to be written out of bounds past an undersized heap allocation. An attacker who induces a victim to load a malicious dictionary \u2014 for example via aspell dump master \u003Cfile\u003E \u2014 can corrupt heap memory, resulting in denial of service and potentially code execution. Fixed in b830b6e and will be fixed in release 0.60.8.3.",
  "description": "GNU Aspell is a spell checker designed to eventually replace Ispell. It can either be used as a library or as an independent spell checker.\n\nSecurity Fix(es):\n\n* aspell: aspell: Arbitrary code execution via crafted dictionary file (CVE-2026-103658)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "published": "2026-10-12T22:17:03Z",
  "severity": "Moderate",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
  "cwe": "Heap-based Buffer Overflow",
  "epss": 0.00213,
  "epssPercentile": 0.11715,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-103658",
  "fixes": [
    {
      "platform": "linux",
      "product": "aspell",
      "release": "Debian 14",
      "fixedVersion": "0.60.8.2-4",
      "fix": "DEBIAN-CVE-2026-103658",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-103658",
      "released": "2026-11-01T22:29:49Z"
    },
    {
      "platform": "linux",
      "product": "aspell",
      "release": "RHEL 8",
      "fixedVersion": "12:0.60.6.1-23.el8_10",
      "fix": "RHSA-2026:92615",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-92615",
      "released": "2026-10-30T22:08:02Z"
    },
    {
      "platform": "linux",
      "product": "aspell",
      "release": "RHEL 9",
      "fixedVersion": "12:0.60.8-9.el9_8",
      "fix": "RHSA-2026:92458",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-92458",
      "released": "2026-10-30T22:09:46Z"
    },
    {
      "platform": "linux",
      "product": "aspell",
      "release": "almalinux 8",
      "fixedVersion": "12:0.60.6.1-23.el8_10",
      "fix": "ALSA-2026:92615",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-92615",
      "released": "2026-11-07T00:40:18Z"
    },
    {
      "platform": "linux",
      "product": "aspell",
      "release": "almalinux 9",
      "fixedVersion": "12:0.60.8-9.el9_8",
      "fix": "ALSA-2026:92458",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-92458",
      "released": "2026-11-07T00:40:32Z"
    },
    {
      "platform": "linux",
      "product": "aspell",
      "release": "amzn 2023",
      "fixedVersion": "12:0.60.8-7.amzn2023.0.3",
      "fix": "ALAS2023-2026-3275",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3275",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "aspell",
      "release": "ol 8",
      "fixedVersion": "12:0.60.6.1-23.el8_10",
      "fix": "ELSA-2026-92615",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-92615",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "aspell",
      "release": "ol 9",
      "fixedVersion": "12:0.60.8-9.el9_8",
      "fix": "ELSA-2026-92458",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-92458",
      "released": "2026-11-07T00:52:27Z"
    },
    {
      "platform": "linux",
      "product": "aspell",
      "release": "rocky 8",
      "fixedVersion": "2:0.60.6.1-23.el8_10",
      "fix": "RLSA-2026:92615",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-92615",
      "released": "2026-11-07T00:39:51Z"
    },
    {
      "platform": "linux",
      "product": "aspell",
      "release": "rocky 9",
      "fixedVersion": "2:0.60.8-9.el9_8",
      "fix": "RLSA-2026:92458",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-92458",
      "released": "2026-11-07T00:39:57Z"
    },
    {
      "platform": "linux",
      "product": "aspell-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "12:0.60.8-7.amzn2023.0.3",
      "fix": "ALAS2023-2026-3275",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3275",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "aspell-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "12:0.60.8-7.amzn2023.0.3",
      "fix": "ALAS2023-2026-3275",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3275",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "aspell-devel",
      "release": "RHEL 8",
      "fixedVersion": "12:0.60.6.1-23.el8_10",
      "fix": "RHSA-2026:92615",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-92615",
      "released": "2026-10-30T22:08:02Z"
    },
    {
      "platform": "linux",
      "product": "aspell-devel",
      "release": "RHEL 9",
      "fixedVersion": "12:0.60.8-9.el9_8",
      "fix": "RHSA-2026:92458",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-92458",
      "released": "2026-10-30T22:09:46Z"
    },
    {
      "platform": "linux",
      "product": "aspell-devel",
      "release": "almalinux 8",
      "fixedVersion": "12:0.60.6.1-23.el8_10",
      "fix": "ALSA-2026:92615",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-92615",
      "released": "2026-11-07T00:40:18Z"
    },
    {
      "platform": "linux",
      "product": "aspell-devel",
      "release": "almalinux 9",
      "fixedVersion": "12:0.60.8-9.el9_8",
      "fix": "ALSA-2026:92458",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-92458",
      "released": "2026-11-07T00:40:32Z"
    },
    {
      "platform": "linux",
      "product": "aspell-devel",
      "release": "amzn 2023",
      "fixedVersion": "12:0.60.8-7.amzn2023.0.3",
      "fix": "ALAS2023-2026-3275",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3275",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "aspell-devel",
      "release": "ol 8",
      "fixedVersion": "12:0.60.6.1-23.el8_10",
      "fix": "ELSA-2026-92615",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-92615",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "aspell-devel",
      "release": "ol 9",
      "fixedVersion": "12:0.60.8-9.el9_8",
      "fix": "ELSA-2026-92458",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-92458",
      "released": "2026-11-07T00:52:27Z"
    }
  ],
  "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"
  }
}