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

🗓️ 24 Aug 2026 04:45:02Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 4 Views

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 ...

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Red Hat Enterprise Linux9.2aarch64bsdcat-debuginfo3.5.3-5.el9_2.3bsdcat-debuginfo-3.5.3-5.el9_2.3.aarch64.rpm
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Red Hat Enterprise Linux9.2aarch64bsdcpio-debuginfo3.5.3-5.el9_2.3bsdcpio-debuginfo-3.5.3-5.el9_2.3.aarch64.rpm
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24 Aug 2026 04:46Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.17.5
EPSS0.0047
SSVC
4