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.
- Published Jun 30, 2026
- CVSS 7.5 high
- 0.7% chance of exploitation in the next 30 days (EPSS)
- A fix is available