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.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.5
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS probability
- 0.49%
- CWE
- CWE-415
- Published
- 2026-06-30
- Last modified
- 2026-09-14
Affected products
- Red Hat Red Hat Hardened Images
- Red Hat Red Hat Enterprise Linux 10
- Red Hat Red Hat Enterprise Linux 9
- Red Hat Red Hat Update Infrastructure 5
- Red Hat Red Hat Update Infrastructure 5
- Red Hat Red Hat Update Infrastructure 5
- Red Hat Red Hat Update Infrastructure 5
- Red Hat Red Hat Update Infrastructure 5
Weakness type
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