CVE-2026-14164

high

Description

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.

References

https://access.redhat.com/errata/RHSA-2026:74674

https://access.redhat.com/errata/RHSA-2026:74463

https://access.redhat.com/errata/RHSA-2026:74462

https://access.redhat.com/errata/RHSA-2026:74461

https://access.redhat.com/errata/RHSA-2026:74460

https://access.redhat.com/errata/RHSA-2026:74459

https://access.redhat.com/errata/RHSA-2026:74458

https://access.redhat.com/errata/RHSA-2026:73962

https://access.redhat.com/errata/RHSA-2026:73961

https://access.redhat.com/errata/RHSA-2026:73960

https://access.redhat.com/errata/RHSA-2026:73959

https://access.redhat.com/errata/RHSA-2026:73909

https://access.redhat.com/errata/RHSA-2026:72502

https://access.redhat.com/errata/RHSA-2026:72476

https://access.redhat.com/errata/RHSA-2026:72475

https://access.redhat.com/errata/RHSA-2026:72470

https://access.redhat.com/errata/RHSA-2026:72399

https://access.redhat.com/errata/RHSA-2026:72395

https://access.redhat.com/errata/RHSA-2026:72394

https://access.redhat.com/errata/RHSA-2026:70615

https://access.redhat.com/errata/RHSA-2026:70586

https://access.redhat.com/errata/RHSA-2026:67935

https://access.redhat.com/errata/RHSA-2026:67857

https://access.redhat.com/errata/RHSA-2026:65851

https://access.redhat.com/errata/RHSA-2026:65839

https://access.redhat.com/errata/RHSA-2026:63100

https://access.redhat.com/errata/RHSA-2026:63044

https://access.redhat.com/errata/RHSA-2026:63041

https://access.redhat.com/errata/RHSA-2026:62409

https://access.redhat.com/errata/RHSA-2026:61783

https://access.redhat.com/errata/RHSA-2026:58981

https://access.redhat.com/errata/RHSA-2026:58574

https://access.redhat.com/errata/RHSA-2026:58573

https://access.redhat.com/errata/RHSA-2026:58558

https://access.redhat.com/errata/RHSA-2026:56954

https://access.redhat.com/errata/RHSA-2026:54769

https://access.redhat.com/errata/RHSA-2026:54760

https://access.redhat.com/errata/RHSA-2026:54387

https://access.redhat.com/errata/RHSA-2026:52675

https://access.redhat.com/errata/RHSA-2026:52674

https://access.redhat.com/errata/RHSA-2026:30333

Details

Source: Mitre, NVD

Published: 2026-06-30

Updated: 2026-10-02

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.0035