CVE-2026-5745 | BDVDB-2026-325237 Detail

Description#

A flaw was found in libarchive. A NULL pointer dereference vulnerability exists in the ACL parsing logic, specifically within the archive_acl_from_text_nl() function. When processing a malformed ACL string (such as a bare "d" or "default" tag without subsequent fields), the function fails to perform adequate validation before advancing the pointer. An attacker can exploit this by providing a maliciously crafted archive, causing an application utilizing the libarchive API (such as bsdtar) to crash, resulting in a Denial of Service (DoS).

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Exploit#

History#

1. Version 12026-04-07Record published in the CVE List.
2. Version 22026-11-06Most recent update recorded in the CVE List.