{"id":"RLSA-2026:8510","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\n* libarchive: libarchive: Arbitrary code execution via integer overflow in ISO9660 image processing (CVE-2026-5121)\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.","modified":"2026-04-19T00:30:26.162541Z","published":"2026-04-19T00:04:03.622890Z","upstream":["CVE-2026-4424","CVE-2026-5121"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:8510"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2449006"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2452945"}],"affected":[{"package":{"name":"libarchive","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/libarchive?distro=rocky-linux-9&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.5.3-9.el9_7"}],"database_specific":{"yum_repository":"BaseOS"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:8510.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}