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      "text" : "An update for libsolv is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support.\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" : "The libsolv packages provide a library for resolving package dependencies using a satisfiability algorithm.\n\nSecurity Fix(es):\n\n* libsolv: Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data (CVE-2026-48864)\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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    "acknowledgments" : [ {
      "summary" : "This issue was discovered by Red Hat."
    } ],
    "cve" : "CVE-2026-48864",
    "cwe" : {
      "id" : "CWE-787",
      "name" : "Out-of-bounds Write"
    },
    "discovery_date" : "2026-04-21T23:19:41+00:00",
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    } ],
    "ids" : [ {
      "system_name" : "Red Hat Bugzilla ID",
      "text" : "2460425"
    } ],
    "notes" : [ {
      "category" : "description",
      "text" : "A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within `.solv` files due to insufficient input validation. An attacker can provide a specially crafted `.solv` file, which, when processed by a vulnerable application, can lead to out-of-bounds memory access. This could result in information disclosure, alteration of program execution, or a denial of service.",
      "title" : "Vulnerability description"
    }, {
      "category" : "summary",
      "text" : "libsolv: Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data",
      "title" : "Vulnerability summary"
    }, {
      "category" : "other",
      "text" : "This heap buffer overflow in libsolv's page decompression logic can lead to out-of-bounds reads and writes when processing specially crafted `.solv` files. Exploitation requires a victim application to ingest malicious repository metadata, limiting the attack vector to scenarios involving user interaction or untrusted content sources. Given the user interaction needed, Red Hat Product Security has rated this vulnerability as having a impact of Moderate.",
      "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-2026-48864"
    }, {
      "category" : "external",
      "summary" : "RHBZ#2460425",
      "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2460425"
    }, {
      "category" : "external",
      "summary" : "https://www.cve.org/CVERecord?id=CVE-2026-48864",
      "url" : "https://www.cve.org/CVERecord?id=CVE-2026-48864"
    }, {
      "category" : "external",
      "summary" : "https://nvd.nist.gov/vuln/detail/CVE-2026-48864",
      "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-48864"
    } ],
    "release_date" : "2026-05-26T16:07:55.363000+00:00",
    "remediations" : [ {
      "category" : "vendor_fix",
      "date" : "2026-08-03T19:10:13+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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      "url" : "https://access.redhat.com/errata/RHSA-2026:49775"
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    "scores" : [ {
      "cvss_v3" : {
        "attackComplexity" : "LOW",
        "attackVector" : "LOCAL",
        "availabilityImpact" : "HIGH",
        "baseScore" : 7.8,
        "baseSeverity" : "HIGH",
        "confidentialityImpact" : "HIGH",
        "integrityImpact" : "HIGH",
        "privilegesRequired" : "NONE",
        "scope" : "UNCHANGED",
        "userInteraction" : "REQUIRED",
        "vectorString" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
        "version" : "3.1"
      },
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    } ],
    "threats" : [ {
      "category" : "impact",
      "details" : "Moderate"
    } ],
    "title" : "libsolv: Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data"
  } ]
}