{
  "schema_version": "1.7.0",
  "id": "RHSA-2026:50773",
  "related": [],
  "upstream": [
    "CVE-2026-27820",
    "CVE-2026-42256",
    "CVE-2026-42257",
    "CVE-2026-47240",
    "CVE-2026-47241",
    "CVE-2026-47242"
  ],
  "published": "2026-08-27T10:14:06Z",
  "modified": "2026-08-28T10:09:01Z",
  "summary": "Red Hat Security Advisory: ruby4.0 security, bug fix, and enhancement update",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N"
    }
  ],
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    {
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    {
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    {
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:50773"
    },
    {
      "type": "ARTICLE",
      "url": "https://access.redhat.com/security/updates/classification/#important"
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      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2459002"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468494"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468500"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2491519"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2491522"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2491523"
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    {
      "type": "ADVISORY",
      "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_50773.json"
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    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-27820"
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    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-27820"
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    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27820"
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    {
      "type": "ARTICLE",
      "url": "https://github.com/ruby/zlib/security/advisories/GHSA-g857-hhfv-j68w"
    },
    {
      "type": "ARTICLE",
      "url": "https://hackerone.com/reports/3467067"
    },
    {
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      "url": "https://access.redhat.com/security/cve/CVE-2026-42256"
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    {
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      "url": "https://www.cve.org/CVERecord?id=CVE-2026-42256"
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    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42256"
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    {
      "type": "ARTICLE",
      "url": "https://github.com/ruby/net-imap/commit/158d0b505074397cdb5ceb58935e42dd2bcfa612"
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    {
      "type": "ARTICLE",
      "url": "https://github.com/ruby/net-imap/commit/808001bc45c06f7297a7e96d341279e041a7f7f4"
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    {
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    {
      "type": "ARTICLE",
      "url": "https://github.com/ruby/net-imap/security/advisories/GHSA-87pf-fpwv-p7m7"
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    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-42257"
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    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-42257"
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    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42257"
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    {
      "type": "ARTICLE",
      "url": "https://github.com/ruby/net-imap/security/advisories/GHSA-hm49-wcqc-g2xg"
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}