Red Hat Product Errata RHSA-2026:28058 - Security Advisory Issued: 2026-06-23 Updated: 2026-06-23 RHSA-2026:28058 - Security Advisory Overview Updated Packages Synopsis Important: samba security update Type/Severity Security Advisory: Important Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for samba is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Description Samba is an open-source implementation of the Server Message Block (SMB) protocol and the related Common Internet File System (CIFS) protocol, which allow PC-compatible machines to share files, printers, and various information. Security Fix(es): samba: Samba: Remote Code Execution in printing subsystem via unescaped job description (CVE-2026-4480) samba: Remote Code Execution in SAMR (CVE-2026-4408) For 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. Solution For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Affected Products Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.4 x86_64 Red Hat Enterprise Linux Server - AUS 8.4 x86_64 Fixes BZ - 2452232 - CVE-2026-4480 samba: Samba: Remote Code Execution in printing subsystem via unescaped job description BZ - 2479762 - CVE-2026-4408 samba: Remote Code Execution in SAMR CVEs CVE-2026-4408 CVE-2026-4480 References https://access.redhat.com/security/updates/classification/#important Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.4 SRPM samba-4.13.3-12.el8_4.1.src.rpm SHA-256: 3dc449a1916ba92693d9298f5ad3a070b5fdbdb858cff88564c4e716eae7e5e4 x86_64 ctdb-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: bb9e47c5b77d6659a37680bc953e7b4cb5dfd46d87349ae25f904b9890aa7e8f ctdb-debuginfo-4.13.3-12.el8_4.1.i686.rpm SHA-256: 44d0769ea809c3dfe38b25fbecae7e3e64ced3dbdc318495652aea8c0e302abe ctdb-debuginfo-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 8a246f55bb4bc597647cad600d203111f31a91a7a7911609dde12538195b4dcd ctdb-tests-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 9c1e4b418e62478ee2eb89cd5f5153ee8d76f7d1b28e72b9579424e09eebaa69 ctdb-tests-debuginfo-4.13.3-12.el8_4.1.i686.rpm SHA-256: 8789bd7f9fa965d0cc0dd39069064b2b4e73b70e0c01096a075a5ef0a285228c ctdb-tests-debuginfo-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: ffc42df65892b9cd527e736b3752e592900cda689e908c4d64839d13efca7aea libsmbclient-4.13.3-12.el8_4.1.i686.rpm SHA-256: 4f20fbd31f0d0f62a5053f4d2e6a143f5647db5bee0e45d1ef7d08b8f867b9fa libsmbclient-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 77c4db6f6b620600cad49c424f0de0ad62243e528810356ee5c1f8d15401e428 libsmbclient-debuginfo-4.13.3-12.el8_4.1.i686.rpm SHA-256: 7df774489d8b6441bffb89b33b193748857bb4c10c80813b22278a935caf0c60 libsmbclient-debuginfo-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: f7c65011f22c51d0d4bd60f8868fe9c7524efd010b29c0840f3d92432ac221e2 libwbclient-4.13.3-12.el8_4.1.i686.rpm SHA-256: 3d02025d394acbbbc1782865c6590e3a0dfe2e118746dcd30c9c70b2ac41066d libwbclient-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 4872f1144d24e867733c654939f874582bc1848b51b50a93fe2a4cd3e39f05ee libwbclient-debuginfo-4.13.3-12.el8_4.1.i686.rpm SHA-256: 4aed305a1f58c09888bbdd3c5108ca7c427afdebf0d2a88703a2fb786ab2fa7f libwbclient-debuginfo-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 457ebf426394ba8270e2434ad5345c2f97bf7507ea8e5270d21f0fffbc4152c1 python3-samba-4.13.3-12.el8_4.1.i686.rpm SHA-256: 2a9eff8e4325c9c450b04acdce93482d81565b007a1692bb796c10b8646cec95 python3-samba-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 670b03b88a578639de0f9b0d050ecdb72f691f7b0b679ebf05e74d2f96a785fc python3-samba-debuginfo-4.13.3-12.el8_4.1.i686.rpm SHA-256: e5948ae4f659e81596d191a021875bc8921f9b66f63c45ee867a78cb6ddb09a9 python3-samba-debuginfo-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 6cb655fc7d674060fbfdd96ef89bcf70660a92cf2d5098682138e9e75d99fdf4 python3-samba-test-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 6bea21c3fb09add11049d788a83524fe7aff6b910f81247b8c4d5a90ba541d77 samba-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 64f79cfb5544018043aa840fe73e7f7ca390f1188f59209c845082f8fc937d0d samba-client-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 79a91e78fe405260421c700a1e14ad89ced7184a4ae56717d2c118a1c7168474 samba-client-debuginfo-4.13.3-12.el8_4.1.i686.rpm SHA-256: ce9ffbcb8115bf1879755a2c90c929af9b623a22f1b3dd566fcda8a3046b95d7 samba-client-debuginfo-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 0dc126bb41bfd132c35bf43954c9260bbe86d0fa812686144439792d152f2a4e samba-client-libs-4.13.3-12.el8_4.1.i686.rpm SHA-256: a9f86a39db898254b779ac9826d5943bd3656e1d384bcd726faf13f4519534db samba-client-libs-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 865e1d76589ec3602bc4650e26295a40d7f95d6b95d6f5bd9f37da8d94ee3e74 samba-client-libs-debuginfo-4.13.3-12.el8_4.1.i686.rpm SHA-256: 91742bf66171aef2265f5a0692bda48a38170ef62402e26b430f794b9f0fd284 samba-client-libs-debuginfo-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: fd3258f26cf1f5a714aac55e47b6ab074d8e4de10a3f06a935c8715ee5a955e9 samba-common-4.13.3-12.el8_4.1.noarch.rpm SHA-256: 0a19f29c02f6ee54cb963f968a7db699f90e17d83b79f68934f5606cf190e9d5 samba-common-libs-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: ad0544d56f8754b13627596d45d46c32a8cfe61eaad95d6eb958bdbcd5fa79dc samba-common-libs-debuginfo-4.13.3-12.el8_4.1.i686.rpm SHA-256: fa91d4e5eb5750e69ac2b69b7403c5928351bcce7a7c09bbe476d01ae040ae59 samba-common-libs-debuginfo-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: bd362407f1585d39cd1d84c53b1620fa8f67720ff91353a9c93d88fbfc13539e samba-common-tools-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 2ed2f63f1bf7234688ee074573671f1badbfc8f04d053e5fff05434e071c4bb4 samba-common-tools-debuginfo-4.13.3-12.el8_4.1.i686.rpm SHA-256: 9007e2b17397d3bf14140dd802a193b04a9fb91a3027494c0939c3f9c0ac24c5 samba-common-tools-debuginfo-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: cf033067e4b65c760c2e7027dfa68117fc8d2a016f260cc57b3f09d9dbd2c34a samba-debuginfo-4.13.3-12.el8_4.1.i686.rpm SHA-256: 8aaf426a09dbabb0642c9697043db78d0edfd86a53134b658640ac47de63588d samba-debuginfo-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 7e993d60776eb44efdd105fc5267a2b25c5c634e054851c5b0e890a5c60469d6 samba-debugsource-4.13.3-12.el8_4.1.i686.rpm SHA-256: e5d94ca8dd1756fc78c5865979b1b9d68bdd94090be89402492571aa99f06035 samba-debugsource-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 759c93a954d0bec96016fbbd118dce2a615e235a504a9bfe18561815cc688caa samba-krb5-printing-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: da26f5e16321aaf30b10c76402e80086c25974bb224b11c9294d43424440ffb5 samba-krb5-printing-debuginfo-4.13.3-12.el8_4.1.i686.rpm SHA-256: bc34e2b56d7df8a3b45294c25e4cb68e3d09b2fba9d7ab4075518a87b8f2f643 samba-krb5-printing-debuginfo-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 6295ece463d36a5a66a185d18c2fe69e6a73d5f84e8772db7af8308221414b1b samba-libs-4.13.3-12.el8_4.1.i686.rpm SHA-256: 0998274a43b412dce4b770b0869da753ead13017a5629bc04b5bbaf749a19774 samba-libs-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 58611374018d57f2e131bf1c302da43dd7b1fc123f5820a79f989d1a30d074ea samba-libs-debuginfo-4.13.3-12.el8_4.1.i686.rpm SHA-256: 5d2b9e603bb2de70aff893eae442e8e9215ab7a418b36ad11ebfa1c9de3b8c22 samba-libs-debuginfo-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 073572a28bcc8f65577841118f50849a7afd0e1f1ebf672370881b0b40af9995 samba-pidl-4.13.3-12.el8_4.1.noarch.rpm SHA-256: 5d8eefd3cfc77dccf9caa1a1e320d195be38146d45d72fb04734d9384d9a6a2a samba-test-4.13.3-12.el8_4.1.x86_64.rpm SHA-256: 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samba-winbind-modules-4.13.3-12.el8_4.1.i686.rpm SHA-256: b2929