CVE-2026-14164

A double free issue has been identified in libarchive's RAR5 reader. During parsing of a specially crafted RAR5 archive, the filtered_buf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of the same memory region, resulting in a double-free condition. Successful exploitation may cause applications using the vulnerable libarchive API to terminate unexpectedly, leading to a denial of service.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:30333
https://access.redhat.com/errata/RHSA-2026:52674
https://access.redhat.com/errata/RHSA-2026:52675
https://access.redhat.com/errata/RHSA-2026:54387
https://access.redhat.com/errata/RHSA-2026:54760
https://access.redhat.com/errata/RHSA-2026:54769
https://access.redhat.com/errata/RHSA-2026:56954
https://access.redhat.com/errata/RHSA-2026:58558
https://access.redhat.com/errata/RHSA-2026:58573
https://access.redhat.com/errata/RHSA-2026:58574
https://access.redhat.com/errata/RHSA-2026:58981
https://access.redhat.com/errata/RHSA-2026:61783
https://access.redhat.com/errata/RHSA-2026:62409
https://access.redhat.com/errata/RHSA-2026:63041
https://access.redhat.com/errata/RHSA-2026:63044
https://access.redhat.com/errata/RHSA-2026:63100
https://access.redhat.com/security/cve/CVE-2026-14164
https://bugzilla.redhat.com/show_bug.cgi?id=2493411
https://github.com/libarchive/libarchive/issues/3069
https://github.com/libarchive/libarchive/pull/3071
https://github.com/libarchive/libarchive/issues/3069

Configurations

No configuration.

History

No history.

Information

Published : 2026-06-30 07:16

Updated : 2026-09-14 13:17

NVD link : CVE-2026-14164

Mitre link : CVE-2026-14164

CVE.ORG link : CVE-2026-14164

JSON object : View

Products Affected

No product.

CWE

CWE-415

Double Free

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"https://access.redhat.com/errata/RHSA-2026:54387", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:54760", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:54769", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:56954", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:58558", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:58573", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:58574", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:58981", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:61783", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:62409", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:63041", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:63044", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:63100", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-14164", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2493411", "source": "secalert@redhat.com"}, {"url": "https://github.com/libarchive/libarchive/issues/3069", "source": "secalert@redhat.com"}, {"url": "https://github.com/libarchive/libarchive/pull/3071", "source": "secalert@redhat.com"}, {"url": "https://github.com/libarchive/libarchive/issues/3069", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-415"}]}], "descriptions": [{"lang": "en", "value": "A double free issue has been identified in libarchive's RAR5 reader. During parsing of a specially crafted RAR5 archive, the filtered_buf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of the same memory region, resulting in a double-free condition. Successful exploitation may cause applications using the vulnerable libarchive API to terminate unexpectedly, leading to a denial of service."}], "lastModified": "2026-09-14T13:17:33.447", "sourceIdentifier": "secalert@redhat.com"}