{"id":"ALSA-2026:8534","summary":"Important: libarchive security update","details":"The libarchive programming library can create and read several different streaming archive formats, including GNU tar, cpio, and ISO 9660 CD-ROM images. Libarchive is used notably in the bsdtar utility, scripting language bindings such as python-libarchive, and several popular desktop file managers.  \n\nSecurity Fix(es):  \n\n  * libarchive: libarchive: Information disclosure via heap out-of-bounds read in RAR archive processing (CVE-2026-4424)\n  * libarchive: libarchive: Arbitrary code execution via integer overflow in ISO9660 image processing (CVE-2026-5121)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","modified":"2026-04-21T10:45:58.591825Z","published":"2026-04-16T00:00:00Z","related":["CVE-2026-4424","CVE-2026-5121"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:8534"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-4424"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-5121"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2449006"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2452945"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2026-8534.html"}],"affected":[{"package":{"name":"bsdtar","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/bsdtar"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.3-7.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:8534.json"}},{"package":{"name":"libarchive","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/libarchive"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.3-7.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:8534.json"}},{"package":{"name":"libarchive-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/libarchive-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.3-7.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:8534.json"}}],"schema_version":"1.7.5"}