Red Hat Product Errata RHSA-2026:33229 - Security Advisory Issued: 2026-06-29 Updated: 2026-06-29 RHSA-2026:33229 - Security Advisory Overview Updated Packages Synopsis Moderate: glibc security update Type/Severity Security Advisory: Moderate Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for glibc is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Moderate. 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 The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fix(es): glibc: glibc: Heap Buffer Overflow in `scanf` with `%mc` format specifier and large width (CVE-2026-5450) 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 Server - AUS 9.4 x86_64 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 ppc64le Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 x86_64 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 aarch64 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 s390x Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.4 x86_64 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.4 aarch64 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.4 ppc64le Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.4 s390x Fixes BZ - 2459853 - CVE-2026-5450 glibc: glibc: Heap Buffer Overflow in `scanf` with `%mc` format specifier and large width CVEs CVE-2026-5450 References https://access.redhat.com/security/updates/classification/#moderate Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux Server - AUS 9.4 SRPM glibc-2.34-100.el9_4.13.src.rpm SHA-256: 00535199410b395434e37aabdd961e34b554d7ad8ec605a5b89bb38235ceab23 x86_64 glibc-2.34-100.el9_4.13.i686.rpm SHA-256: ceb7de824cc05dcefa0b8923eb86ad97721bbcf9e970353c0d9e4f7d6504f68e glibc-2.34-100.el9_4.13.x86_64.rpm SHA-256: ec4b7567b1867a1ffd7191aad92ab9d6bd52ac8d8aab8cdb5a5f2126e9f81264 glibc-all-langpacks-2.34-100.el9_4.13.x86_64.rpm SHA-256: a752b3e10a35488aee798f49aac0665db0971cc6131f1cc3865a4125695aa791 glibc-benchtests-debuginfo-2.34-100.el9_4.13.i686.rpm SHA-256: 4d6d094bcbc753e18e8fbddcc0e82196df74f22a1dada30658ec9344537560fa glibc-benchtests-debuginfo-2.34-100.el9_4.13.i686.rpm SHA-256: 4d6d094bcbc753e18e8fbddcc0e82196df74f22a1dada30658ec9344537560fa glibc-benchtests-debuginfo-2.34-100.el9_4.13.x86_64.rpm SHA-256: 67658e4bae9e95360f6a8f980e88162429cb1e9fdb0e2d9c5dc82b97bfe01ef7 glibc-benchtests-debuginfo-2.34-100.el9_4.13.x86_64.rpm SHA-256: 67658e4bae9e95360f6a8f980e88162429cb1e9fdb0e2d9c5dc82b97bfe01ef7 glibc-common-2.34-100.el9_4.13.x86_64.rpm SHA-256: e5cfb0f922d39f7bd52b2911b20e5925ee9f93056a61ef4f406cad3dd24f0703 glibc-common-debuginfo-2.34-100.el9_4.13.i686.rpm SHA-256: 34a9f4ace49d9713bcc5d424bb75804d75d6309b1a27388c14fbaef238cc91b4 glibc-common-debuginfo-2.34-100.el9_4.13.i686.rpm SHA-256: 34a9f4ace49d9713bcc5d424bb75804d75d6309b1a27388c14fbaef238cc91b4 glibc-common-debuginfo-2.34-100.el9_4.13.x86_64.rpm SHA-256: 33b95756b40075523771afdfc5ad485eb97c2fd6c818d2a9534f01b7c601bc1c glibc-common-debuginfo-2.34-100.el9_4.13.x86_64.rpm SHA-256: 33b95756b40075523771afdfc5ad485eb97c2fd6c818d2a9534f01b7c601bc1c glibc-debuginfo-2.34-100.el9_4.13.i686.rpm SHA-256: 0145e1252dfcdcee13467476fc9cab6a2da8ede8ac755683e569cbed3a091666 glibc-debuginfo-2.34-100.el9_4.13.i686.rpm SHA-256: 0145e1252dfcdcee13467476fc9cab6a2da8ede8ac755683e569cbed3a091666 glibc-debuginfo-2.34-100.el9_4.13.x86_64.rpm SHA-256: 2f47ae2683319f3fcdd602b934c8590ccea2a4e5067ed1d2b5ae31984bb98019 glibc-debuginfo-2.34-100.el9_4.13.x86_64.rpm SHA-256: 2f47ae2683319f3fcdd602b934c8590ccea2a4e5067ed1d2b5ae31984bb98019 glibc-debugsource-2.34-100.el9_4.13.i686.rpm SHA-256: 931d3aca6c3dd169e5dfb606c28e74ab4bae7b11c1a4fd0bfaf7651f2b9fce3c glibc-debugsource-2.34-100.el9_4.13.i686.rpm SHA-256: 931d3aca6c3dd169e5dfb606c28e74ab4bae7b11c1a4fd0bfaf7651f2b9fce3c glibc-debugsource-2.34-100.el9_4.13.x86_64.rpm SHA-256: bcd6dffedfa05daff90c1be92ffb408719ca76c33308aa16f8c7394370683ed8 glibc-debugsource-2.34-100.el9_4.13.x86_64.rpm SHA-256: bcd6dffedfa05daff90c1be92ffb408719ca76c33308aa16f8c7394370683ed8 glibc-devel-2.34-100.el9_4.13.i686.rpm SHA-256: 5e41677199880059bd0a70519b6c33ad776473daaa9a1af5be71707b992b4518 glibc-devel-2.34-100.el9_4.13.x86_64.rpm SHA-256: f84d49b003f0cb83e0748edee1c5c6ecfef184c07a77251159282a3a7a00b359 glibc-doc-2.34-100.el9_4.13.noarch.rpm SHA-256: 15265d39f53a75901dd4c7f7ec362741d87cfd6ee42265a4c505d4900f5036fc glibc-gconv-extra-2.34-100.el9_4.13.i686.rpm SHA-256: 667f970b988223e93dff219d3dfd6ee13de26aeb19852930299d720cff0effa6 glibc-gconv-extra-2.34-100.el9_4.13.x86_64.rpm SHA-256: 01430f4cccd0f02a2bfb813de92fe8440a76502d621efcfd3774bfb2e6c2e85c glibc-gconv-extra-debuginfo-2.34-100.el9_4.13.i686.rpm SHA-256: 68fe745565cfbbd800a2070e6b5f77410d690963a8387eac945e1b6e17f3b39e glibc-gconv-extra-debuginfo-2.34-100.el9_4.13.i686.rpm SHA-256: 68fe745565cfbbd800a2070e6b5f77410d690963a8387eac945e1b6e17f3b39e glibc-gconv-extra-debuginfo-2.34-100.el9_4.13.x86_64.rpm SHA-256: 882b91272e2ad73f7097c6b2c3a14c50d9f1a81e0880b38c43d54f4e1bd06e4f glibc-gconv-extra-debuginfo-2.34-100.el9_4.13.x86_64.rpm SHA-256: 882b91272e2ad73f7097c6b2c3a14c50d9f1a81e0880b38c43d54f4e1bd06e4f glibc-headers-2.34-100.el9_4.13.x86_64.rpm SHA-256: 28dd96651400b531a129fa50abafc7c8150270f0786b91ca6f9e64f091ae8d0d glibc-langpack-aa-2.34-100.el9_4.13.x86_64.rpm SHA-256: 74d48dc33eee26a66b7fe3ea115d0ff3a3a805b938986419a90db2d481698880 glibc-langpack-af-2.34-100.el9_4.13.x86_64.rpm SHA-256: 490193f40f15676c59a13f8026e7ebed15a3677b9ffc16867e67f2a3380adc24 glibc-langpack-agr-2.34-100.el9_4.13.x86_64.rpm SHA-256: 8723d4a2138b843606c8d5074d92ec2fe6b6c136782f2c7fe6d0462333870652 glibc-langpack-ak-2.34-100.el9_4.13.x86_64.rpm SHA-256: 9c38444d5b5e80a00446fdb55be7cc7302b8272ac52a515905ee403618f98a04 glibc-langpack-am-2.34-100.el9_4.13.x86_64.rpm SHA-256: f292f4d7944217200eb8a355698b5afea721147ef8c02a423dc27b7e66d84cda glibc-langpack-an-2.34-100.el9_4.13.x86_64.rpm SHA-256: fe180c133708855125327f1350bd8543b72ab9b774f391c6a00a04b9f09b4a06 glibc-langpack-anp-2.34-100.el9_4.13.x86_64.rpm SHA-256: 0c115266fc611d241209b84b128b57fe72b5fd086177a97b0f37a3ed3a8e3343 glibc-langpack-ar-2.34-100.el9_4.13.x86_64.rpm SHA-256: 597aaeb7359e25f4a286248eff82d974910621038d2be9d56d49fabddeb2e374 glibc-langpack-as-2.34-100.el9_4.13.x86_64.rpm SHA-256: bd62a366dc9f3dbbcd4d12d33447b5a8db4cdeb45aca6981590b4e4221958be1 glibc-langpack-ast-2.34-100.el9_4.13.x86_64.rpm SHA-256: 4510a090a81fc4076c37e8d5ced47addc78de56dfc3b5c91bf46ee1198dc33b6 glibc-langpack-ayc-2.34-100.el9_4.13.x86_64.rpm SHA-256: c27b324419ed3afc7a5ebf4133c58962b9c268d90883d7c303712876dfe44411 glibc-langpack-az-2.34-100.el9_4.13.x86_64.rpm SHA-256: 12bc84dd16b453b97a5b42705a238b9c37f16ef3618d21c6993f3850ef7f8ad5 glibc-langpack-be-2.34-100.el9_4.13.x86_64.rpm SHA-256: 393e8c547bbe774f71aeae806bf49fb3b984b98429f890f5327840b03ce6170e glibc-langpack-bem-2.34-100.el9_4.13.x86_64.rpm SHA-256: 501f98395bde453cf0c33705a9408cd9eb807cce9cd16653950d5c55c858c275 glibc-langpack-ber-2.34-100.el9_4.13.x86_64.rpm SHA-256: 068267aba1d33977092844966413b9e74ebc7cb8654af2024edbc44ecbe34625 glibc-langpack-bg-2.34-100.el9_4.13.x86_64.rpm SHA-256: dc8d57fb9804806f0c82cdd230d3b03f26085751a3fa5332b696c70e83e44025 glibc-langpack-bhb-2.34-100.el9_4.13.x86_64.rpm SHA-256: 60ea3450b006a81e863f3e11404d3da9e32af3b8aebd7ecf76d7460d228ccaa1 glibc-langpack-bho-2.34-100.el9_4.13.x86_64.rpm SHA-256: cec86da20ed7f59e53ccfe83e59e634aa85d5dc7e354fa349f732fcea6490f9c glibc-langpack-bi-2.34-100.el9_4.13.x86_64.rpm SHA-256: 6b9938eaeabd51a952935aa3cfdeba560ea3a50344801143907981bfd6a4653f glibc-langpack-bn-2.34-100.el9_4.13.x86_64.rpm SHA-256: 6b3e4b50866eed495a324c3280484dad7afc1bdc731c4fdd229ff93046856cf6 glibc-langpack-bo-2.34-100.el9_4.13.x86_64.rpm SHA-256: a89499befcca9e983b660759afbd3e9bfceb3244839d6910e682bdc0d77df4a2 glibc-langpack-br-2.34-100.el9_4.13.x86_64.rpm SHA-256: 50d89a36ae54381116ce684054dd1a3ca5694666cecc6ae93a7a8767edaf33c9 glibc-langpack-brx-2.34-100.el9_4.13.x86_64.rpm SHA-256: da6343c4e67899b69e0d26c9161d9ca6cf5fe8e45cd03fea39ef3ba7c41cf7c3 glibc-langpack-bs-2.34-100.el9_4.13.x86_64.rpm SHA-256: c329e3ab1a6923bd63c9b3720a5debecdd0f0a34a180f9a9ff68ffd1faf2717a glibc-langpack-byn-2.34-100.el9_4.13.x86_64.rpm SHA-256: 80808f5d83e6743bd101095eecf3095c57d54cdc0ab42e8c1813845962ccc2df glibc-langpack-ca-2.34-100.el9_4.13.x86_64.rpm SHA-256: 70919bf431a13a0a07a2e6020ba625c550f6face55283b4ce1eceb975369c853 glibc-langpack-ce-2.34-100.el9_4.13.x86_64.rpm SHA-256: c5210add8178f225597563bc242ae34f70c3f5c95ed4465f5b6c684ddcae4883 glibc-langpack-chr-2.34-100.el9_4.13.x86_64.rpm SHA-256: b59f0af824632ab67316143ede7a78769828189ac66f3b532c24268152ce1389 glibc-langpack-ckb-2.34-100.el9_4.13.x86_64.rpm SHA-256: b737ace914ea105d8b509dc41d3a697f28a6117e08532106318393e4e8d68733 glibc-langpack-cmn-2.34-100.el9_4.13.x86_64.rpm SHA-256: ad03a15f05f2fe74902e354b1854f2f41c39cc8cc1571666c80ab9000b9dbe73 glibc-langpack-crh-2.34-100.el9_4.13.x86_64.rpm S