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UnratedFix available

libarchive: Fix of 3 CVEs

Type: advisorySources: OSV

- CVE-2026-4424: fix RAR LZSS window size mismatch after PPMd block (heap OOB read)

Products
bsdcpio, bsdtar, libarchive, libarchive-devel
Affected versions
Not specified
Fixed versions
3.1.2-14.el7_7.tuxcare.els8
CVEs
CVE-2026-4424
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 11:25 UTC · Revision 1

Source evidence

libarchive: Fix of 3 CVEs

core-osv · Original source

Published 4 Aug 2026, 12:43 UTC

- CVE-2026-4424: fix RAR LZSS window size mismatch after PPMd block (heap OOB read)

osv:CLSA-2026-1782303221

bsdcpio

Fixed versions: 3.1.2-14.el7_7.tuxcare.els8

bsdtar

Fixed versions: 3.1.2-14.el7_7.tuxcare.els8

libarchive

Fixed versions: 3.1.2-14.el7_7.tuxcare.els8

libarchive-devel

Fixed versions: 3.1.2-14.el7_7.tuxcare.els8

Complete source record
{
  "id": "c2eb59ebe40e59f735ea5ee06b97b78f9bf6ea71e54167145ba9f88147f3601b",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1782303221",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "libarchive: Fix of 3 CVEs",
    "summary": "- CVE-2026-4424: fix RAR LZSS window size mismatch after PPMd block (heap OOB read)",
    "evidence": "osv:CLSA-2026-1782303221",
    "products": [
      {
        "name": {
          "value": "bsdcpio",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.1.2-14.el7_7.tuxcare.els8",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "bsdtar",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.1.2-14.el7_7.tuxcare.els8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libarchive",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.1.2-14.el7_7.tuxcare.els8",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libarchive-devel",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.1.2-14.el7_7.tuxcare.els8",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1782303221",
      "aliases": [
        "CLSA-2026-1782303221"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.1.2-14.el7_7.tuxcare.els8"
                }
              ]
            }
          ],
          "package": {
            "name": "bsdcpio",
            "purl": "pkg:rpm/tuxcare/bsdcpio?distro=oraclelinux-7",
            "ecosystem": "TuxCare:OracleLinux:7"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1782303221.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.1.2-14.el7_7.tuxcare.els8"
                }
              ]
            }
          ],
          "package": {
            "name": "bsdtar",
            "purl": "pkg:rpm/tuxcare/bsdtar?distro=oraclelinux-7",
            "ecosystem": "TuxCare:OracleLinux:7"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1782303221.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.1.2-14.el7_7.tuxcare.els8"
                }
              ]
            }
          ],
          "package": {
            "name": "libarchive",
            "purl": "pkg:rpm/tuxcare/libarchive?distro=oraclelinux-7",
            "ecosystem": "TuxCare:OracleLinux:7"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1782303221.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.1.2-14.el7_7.tuxcare.els8"
                }
              ]
            }
          ],
          "package": {
            "name": "libarchive-devel",
            "purl": "pkg:rpm/tuxcare/libarchive-devel?distro=oraclelinux-7",
            "ecosystem": "TuxCare:OracleLinux:7"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1782303221.json"
          }
        }
      ],
      "modified": "2026-10-26T09:31:54.460948471Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-4424"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/oraclelinux7els/CLSA-2026-1782303221.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-25724",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-4424",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-5121"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-4424",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 448905,
  "published_at": "2026-08-04T12:43:22+00:00"
}