CVE-2026-17591

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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. 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"https://github.com/libarchive/libarchive/pull/3318"}], "datePublic": "2026-07-20T12:00:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-416", "description": "Use After Free", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-416: Use After Free", "timeline": [{"lang": "en", "time": "2026-10-16T16:48:43.437Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-07-20T12:00:00.000Z", "value": "Made public."}], "credits": [{"lang": "en", "value": "Red Hat would like to thank shaohan.X for reporting this issue."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-11-06T18:08:38.984Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-19T21:27:56.253609Z", "id": "CVE-2026-17591", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": 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