libarchive: Double-Free Vulnerability in RAR5 Decompression Logic via dangling filtered_buf pointer in init_unpack()

A double free issue has been identified in libarchive's RAR5 reader. During parsing of a specially crafted RAR5 archive, the filteredbuf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of...

EUVD-2026-40259

A double free issue has been identified in libarchive's RAR5 reader. During parsing of a specially crafted RAR5 archive, the filteredbuf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of...

EUVD-2026-12031

A flaw was identified in the RAR5 archive decompression logic of the libarchive library, specifically within the archivereaddata processing path. When a specially crafted RAR5 archive is processed, the decompression routine may enter a state where internal logic prevents forward progress. This...

PT-2026-25310

Name of the Vulnerable Software and Affected Versions libarchive affected versions not specified Description A flaw exists in the RAR5 archive decompression logic within the archive read data processing path of the libarchive library. Processing a specially crafted RAR5 archive can cause the...