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      "text" : "An update for ruby4.0 is now available for Red Hat Enterprise Linux 10.\n\nRed Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
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      "text" : "Ruby is the interpreted scripting language for quick and easy object-oriented programming.  It has many features to process text files and to do system management tasks (as in Perl).  It is simple, straight-forward, and extensible.\n\nSecurity Fix(es):\n\n* ruby: integer overflow issue in regular expression compiler (CVE-2026-93577)\n\n* ruby: integer overflow issue in CI/CD regular expression compiler (CVE-2026-97229)\n\n* ruby: integer overflow issue in regular expression compiler (CVE-2026-110264)\n\nBug Fix(es) and Enhancement(s):\n\n* ruby4.0: Rebase to the latest Ruby 4.0 release [rhel-10.2.z] (JIRA:RHEL-300942)\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.",
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      "category" : "description",
      "text" : "A flaw was found in Ruby. When compiling a specially crafted regular expression with the methods Regexp.new, Regexp.union, Regexp.compile, or via a string interpolation such as /#{input}/, an integer overflow in the size of the compiled pattern can occur. This integer overflow causes memory corruption, potentially resulting in arbitrary code execution.",
      "title" : "Vulnerability description"
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      "category" : "summary",
      "text" : "ruby: integer overflow issue in regular expression compiler",
      "title" : "Vulnerability summary"
    }, {
      "category" : "other",
      "text" : "Red Hat has rated the impact of these flaws as Moderate for the Ruby packages shipped in Red Hat Enterprise Linux. The Ruby packages provide a language interpreter and standard library and do not accept external input on their own; these flaws are reachable only when an application compiles a regular expression constructed from attacker-controlled input.\n\nUpstream Ruby has published a security advisory for these issues and scopes the flaws narrowly, stating that they \"are reached only when an application compiles a regular expression from a string that an attacker controls, for example by passing it to Regexp.new, Regexp.union or Regexp.compile\", and that \"applications that only use regular expressions written by their own developers are not affected\". Upstream further notes that Ruby \"has generally considered it unsafe to compile and use a regular expression created from untrusted input\".\n\nThe CVE identifiers for these flaws were assigned by GitLab, where the issues were originally reported and where remote code execution was demonstrated against GitLab's own application. Ruby did not request separate identifiers and has asked downstream distributors to track these issues under GitLab's CVE IDs.",
      "title" : "Statement"
    }, {
      "category" : "general",
      "text" : "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
      "title" : "CVSS score applicability"
    } ],
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    },
    "references" : [ {
      "category" : "self",
      "summary" : "Canonical URL",
      "url" : "https://access.redhat.com/security/cve/CVE-2026-93577"
    }, {
      "category" : "external",
      "summary" : "RHBZ#2539842",
      "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2539842"
    }, {
      "category" : "external",
      "summary" : "https://www.cve.org/CVERecord?id=CVE-2026-93577",
      "url" : "https://www.cve.org/CVERecord?id=CVE-2026-93577"
    }, {
      "category" : "external",
      "summary" : "https://nvd.nist.gov/vuln/detail/CVE-2026-93577",
      "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-93577"
    }, {
      "category" : "external",
      "summary" : "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released/",
      "url" : "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released/"
    }, {
      "category" : "external",
      "summary" : "https://gitlab.com/gitlab-org/gitlab/-/work_items/629758",
      "url" : "https://gitlab.com/gitlab-org/gitlab/-/work_items/629758"
    }, {
      "category" : "external",
      "summary" : "https://hackerone.com/reports/3995696",
      "url" : "https://hackerone.com/reports/3995696"
    }, {
      "category" : "external",
      "summary" : "https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/",
      "url" : "https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/"
    } ],
    "release_date" : "2026-09-23T23:04:45.296000+00:00",
    "remediations" : [ {
      "category" : "vendor_fix",
      "date" : "2026-11-09T11:31:06+00:00",
      "details" : "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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      "restart_required" : {
        "category" : "none"
      },
      "url" : "https://access.redhat.com/errata/RHSA-2026:96233"
    }, {
      "category" : "workaround",
      "details" : "To mitigate this vulnerability, do not compile regular expressions from untrusted sources. Standard safeguards such as Regexp.timeout or limiting the length of the input pattern do not protect against this issue.",
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    "scores" : [ {
      "cvss_v3" : {
        "attackComplexity" : "LOW",
        "attackVector" : "NETWORK",
        "availabilityImpact" : "HIGH",
        "baseScore" : 9.8,
        "baseSeverity" : "CRITICAL",
        "confidentialityImpact" : "HIGH",
        "integrityImpact" : "HIGH",
        "privilegesRequired" : "NONE",
        "scope" : "UNCHANGED",
        "userInteraction" : "NONE",
        "vectorString" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
        "version" : "3.1"
      },
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    } ],
    "threats" : [ {
      "category" : "impact",
      "details" : "Moderate"
    } ],
    "title" : "ruby: integer overflow issue in regular expression compiler"
  }, {
    "cve" : "CVE-2026-97229",
    "cwe" : {
      "id" : "CWE-190",
      "name" : "Integer Overflow or Wraparound"
    },
    "discovery_date" : "2026-10-23T00:00:00+00:00",
    "ids" : [ {
      "system_name" : "Red Hat Bugzilla ID",
      "text" : "2550153"
    } ],
    "notes" : [ {
      "category" : "description",
      "text" : "A flaw was found in Ruby. When compiling a specially crafted regular expression with the methods Regexp.new, Regexp.union, Regexp.compile, or via a string interpolation such as /#{input}/, an integer overflow in the size of the compiled pattern can occur. This integer overflow causes memory corruption, potentially resulting in arbitrary code execution.",
      "title" : "Vulnerability description"
    }, {
      "category" : "summary",
      "text" : "ruby: integer overflow issue in CI/CD regular expression compiler",
      "title" : "Vulnerability summary"
    }, {
      "category" : "other",
      "text" : "Red Hat has rated the impact of these flaws as Moderate for the Ruby packages shipped in Red Hat Enterprise Linux. The Ruby packages provide a language interpreter and standard library and do not accept external input on their own; these flaws are reachable only when an application compiles a regular expression constructed from attacker-controlled input.\n\nUpstream Ruby has published a security advisory for these issues and scopes the flaws narrowly, stating that they \"are reached only when an application compiles a regular expression from a string that an attacker controls, for example by passing it to Regexp.new, Regexp.union or Regexp.compile\", and that \"applications that only use regular expressions written by their own developers are not affected\". Upstream further notes that Ruby \"has generally considered it unsafe to compile and use a regular expression created from untrusted input\".\n\nThe CVE identifiers for these flaws were assigned by GitLab, where the issues were originally reported and where remote code execution was demonstrated against GitLab's own application. Ruby did not request separate identifiers and has asked downstream distributors to track these issues under GitLab's CVE IDs.",
      "title" : "Statement"
    }, {
      "category" : "general",
      "text" : "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
      "title" : "CVSS score applicability"
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    "product_status" : {
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    "references" : [ {
      "category" : "self",
      "summary" : "Canonical URL",
      "url" : "https://access.redhat.com/security/cve/CVE-2026-97229"
    }, {
      "category" : "external",
      "summary" : "RHBZ#2550153",
      "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2550153"
    }, {
      "category" : "external",
      "summary" : "https://www.cve.org/CVERecord?id=CVE-2026-97229",
      "url" : "https://www.cve.org/CVERecord?id=CVE-2026-97229"
    }, {
      "category" : "external",
      "summary" : "https://nvd.nist.gov/vuln/detail/CVE-2026-97229",
      "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-97229"
    }, {
      "category" : "external",
      "summary" : "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/",
      "url" : "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/"
    }, {
      "category" : "external",
      "summary" : "https://gitlab.com/gitlab-org/gitlab/-/work_items/630686",
      "url" : "https://gitlab.com/gitlab-org/gitlab/-/work_items/630686"
    }, {
      "category" : "external",
      "summary" : "https://hackerone.com/reports/4055749",
      "url" : "https://hackerone.com/reports/4055749"
    }, {
      "category" : "external",
      "summary" : "https://hackerone.com/reports/4058589",
      "url" : "https://hackerone.com/reports/4058589"
    }, {
      "category" : "external",
      "summary" : "https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/",
      "url" : "https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/"
    }, {
      "category" : "external",
      "summary" : "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "url" : "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
    } ],
    "release_date" : "2026-10-13T01:05:46.166000+00:00",
    "remediations" : [ {
      "category" : "vendor_fix",
      "date" : "2026-11-09T11:31:06+00:00",
      "details" : "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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      "restart_required" : {
        "category" : "none"
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      "url" : "https://access.redhat.com/errata/RHSA-2026:96233"
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      "category" : "workaround",
      "details" : "To mitigate this vulnerability, do not compile regular expressions from untrusted sources. Standard safeguards such as Regexp.timeout or limiting the length of the input pattern do not protect against this issue.",
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        "attackVector" : "NETWORK",
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        "confidentialityImpact" : "HIGH",
        "integrityImpact" : "HIGH",
        "privilegesRequired" : "NONE",
        "scope" : "UNCHANGED",
        "userInteraction" : "NONE",
        "vectorString" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
        "version" : "3.1"
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    } ],
    "threats" : [ {
      "category" : "exploit_status",
      "date" : "2026-10-29T00:00:00+00:00",
      "details" : "CISA: https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
    }, {
      "category" : "impact",
      "details" : "Moderate"
    } ],
    "title" : "ruby: integer overflow issue in CI/CD regular expression compiler"
  }, {
    "cve" : "CVE-2026-110264",
    "cwe" : {
      "id" : "CWE-190",
      "name" : "Integer Overflow or Wraparound"
    },
    "discovery_date" : "2026-10-23T00:00:00+00:00",
    "ids" : [ {
      "system_name" : "Red Hat Bugzilla ID",
      "text" : "2558632"
    } ],
    "notes" : [ {
      "category" : "description",
      "text" : "A flaw was found in Ruby. When compiling a specially crafted regular expression containing an excessive number of repeats with the methods Regexp.new, Regexp.union, Regexp.compile, or via a string interpolation such as /#{input}/, an integer overflow of internal IDs can occur. This integer overflow causes memory corruption, potentially resulting in arbitrary code execution.",
      "title" : "Vulnerability description"
    }, {
      "category" : "summary",
      "text" : "ruby: integer overflow issue in regular expression compiler",
      "title" : "Vulnerability summary"
    }, {
      "category" : "other",
      "text" : "Red Hat has rated the impact of these flaws as Moderate for the Ruby packages shipped in Red Hat Enterprise Linux. The Ruby packages provide a language interpreter and standard library and do not accept external input on their own; these flaws are reachable only when an application compiles a regular expression constructed from attacker-controlled input.\n\nUpstream Ruby has published a security advisory for these issues and scopes the flaws narrowly, stating that they \"are reached only when an application compiles a regular expression from a string that an attacker controls, for example by passing it to Regexp.new, Regexp.union or Regexp.compile\", and that \"applications that only use regular expressions written by their own developers are not affected\". Upstream further notes that Ruby \"has generally considered it unsafe to compile and use a regular expression created from untrusted input\".\n\nThe CVE identifiers for these flaws were assigned by GitLab, where the issues were originally reported and where remote code execution was demonstrated against GitLab's own application. Ruby did not request separate identifiers and has asked downstream distributors to track these issues under GitLab's CVE IDs.",
      "title" : "Statement"
    }, {
      "category" : "general",
      "text" : "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
      "title" : "CVSS score applicability"
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    "references" : [ {
      "category" : "self",
      "summary" : "Canonical URL",
      "url" : "https://access.redhat.com/security/cve/CVE-2026-110264"
    }, {
      "category" : "external",
      "summary" : "RHBZ#2558632",
      "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2558632"
    }, {
      "category" : "external",
      "summary" : "https://www.cve.org/CVERecord?id=CVE-2026-110264",
      "url" : "https://www.cve.org/CVERecord?id=CVE-2026-110264"
    }, {
      "category" : "external",
      "summary" : "https://nvd.nist.gov/vuln/detail/CVE-2026-110264",
      "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-110264"
    }, {
      "category" : "external",
      "summary" : "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/",
      "url" : "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/"
    }, {
      "category" : "external",
      "summary" : "https://gitlab.com/gitlab-org/gitlab/-/work_items/633633",
      "url" : "https://gitlab.com/gitlab-org/gitlab/-/work_items/633633"
    }, {
      "category" : "external",
      "summary" : "https://hackerone.com/reports/4093475",
      "url" : "https://hackerone.com/reports/4093475"
    }, {
      "category" : "external",
      "summary" : "https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/",
      "url" : "https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/"
    } ],
    "release_date" : "2026-10-22T00:33:48.179000+00:00",
    "remediations" : [ {
      "category" : "vendor_fix",
      "date" : "2026-11-09T11:31:06+00:00",
      "details" : "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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      "restart_required" : {
        "category" : "none"
      },
      "url" : "https://access.redhat.com/errata/RHSA-2026:96233"
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      "category" : "workaround",
      "details" : "To mitigate this vulnerability, do not compile regular expressions from untrusted sources. Standard safeguards such as Regexp.timeout or limiting the length of the input pattern do not protect against this issue.",
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    "scores" : [ {
      "cvss_v3" : {
        "attackComplexity" : "LOW",
        "attackVector" : "NETWORK",
        "availabilityImpact" : "HIGH",
        "baseScore" : 9.8,
        "baseSeverity" : "CRITICAL",
        "confidentialityImpact" : "HIGH",
        "integrityImpact" : "HIGH",
        "privilegesRequired" : "NONE",
        "scope" : "UNCHANGED",
        "userInteraction" : "NONE",
        "vectorString" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
        "version" : "3.1"
      },
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    } ],
    "threats" : [ {
      "category" : "impact",
      "details" : "Moderate"
    } ],
    "title" : "ruby: integer overflow issue in regular expression compiler"
  } ]
}