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CVE-2026-17591

3.6 low SSVC exploitation: none Published
NVD · CVE.org

A flaw was found in libarchive. An attacker can cause a Denial of Service (DoS) or potential information disclosure due to a use-after-free vulnerability, which occurs when a program reads memory that has already been released. This issue arises when the archive_entry_copy_mac_metadata() function deallocates an internal buffer before completing a data copy. An attacker who can supply input to an application utilizing this function can trigger the flaw to crash the application or read uninitialized memory data.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 3

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-19 21:28
  2. StatusReceived → Awaiting AnalysisNVD modified 2026-10-19 21:03
  3. First seenCVSS 3.6NVD modified 2026-10-17 17:16

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 4