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RHSA-2026:8492

Vulnerability from csaf_opensuse - Published: 2026-04-16 00:00 - Updated: 2026-09-16 18:53
Summary
security update for libarchive
Severity
Important
Notes
Title of the patch: security update for libarchive
Description of the patch: This security update provides a functional equivalent of RHSA-2026:8492. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2026:8492.
Patchnames: RHSA-2026:8492
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2026-4424
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Liberty Linux 10:bsdtar-3.7.7-8.el10_1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 10:libarchive-3.7.7-8.el10_1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 10:libarchive-devel-3.7.7-8.el10_1.x86_64 —
Vendor Fix
Threats
Impact important
References
To clipboard 

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        "title": "Title of the patch"
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        "title": "Description of the patch"
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        "title": "Patchnames"
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        "category": "legal_disclaimer",
        "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
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        "url": "https://lists.suse.com/pipermail/suse-liberty-linux-updates/2026-April/005141.html"
      },
      {
        "category": "self",
        "summary": "E-Mail link for RHSA-2026:8492",
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      },
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        "url": "https://www.suse.com/security/cve/CVE-2026-4424/"
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    ],
    "title": "security update for libarchive",
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      "revision_history": [
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  "product_tree": {
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                  "product_identification_helper": {
                    "cpe": "cpe:2.3:a:libarchive:libarchive:3.7.7:*:*:*:*:*:*:*",
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          "product_id": "SUSE Liberty Linux 10:bsdtar-3.7.7-8.el10_1.x86_64"
        },
        "product_reference": "bsdtar-3.7.7-8.el10_1.x86_64",
        "relates_to_product_reference": "SUSE Liberty Linux 10"
      },
      {
        "category": "default_component_of",
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  "vulnerabilities": [
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      "cve": "CVE-2026-4424",
      "ids": [
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          "text": "https://www.suse.com/security/cve/CVE-2026-4424"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
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          "SUSE Liberty Linux 10:libarchive-3.7.7-8.el10_1.x86_64",
          "SUSE Liberty Linux 10:libarchive-devel-3.7.7-8.el10_1.x86_64"
        ]
      },
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        {
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          "summary": "SUSE Bug 1259927 for CVE-2026-4424",
          "url": "https://bugzilla.suse.com/1259927"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1265940 for CVE-2026-4424",
          "url": "https://bugzilla.suse.com/1265940"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1271650 for CVE-2026-4424",
          "url": "https://bugzilla.suse.com/1271650"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Liberty Linux 10:bsdtar-3.7.7-8.el10_1.x86_64",
            "SUSE Liberty Linux 10:libarchive-3.7.7-8.el10_1.x86_64",
            "SUSE Liberty Linux 10:libarchive-devel-3.7.7-8.el10_1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-04-16T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-4424"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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