Red Hat Product Errata RHSA-2026:33456 - Security Advisory Issued: 2026-06-30 Updated: 2026-06-30 RHSA-2026:33456 - Security Advisory Overview Updated Packages Synopsis Important: giflib 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 giflib is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. 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 giflib is a library for reading and writing gif images. Security Fix(es): giflib: giflib: Denial of Service via buffer overflow in EGifGCBToExtension (CVE-2026-26740) 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 8.8 x86_64 Red Hat Enterprise Linux Server - TUS 8.8 x86_64 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.8 ppc64le Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.8 x86_64 Fixes BZ - 2448747 - CVE-2026-26740 giflib: giflib: Denial of Service via buffer overflow in EGifGCBToExtension CVEs CVE-2026-26740 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 8.8 SRPM giflib-5.1.4-3.el8_8.2.src.rpm SHA-256: ba00626b3541b9d858d325870467575d298ad560867ba5d2d53a955aef0ff579 x86_64 giflib-5.1.4-3.el8_8.2.i686.rpm SHA-256: 73f7879ff7dec490fb7c478ae63adaff7547c38dbc2555d429e76b5b2b7b4058 giflib-5.1.4-3.el8_8.2.x86_64.rpm SHA-256: c21e053943b36e4a6aff9a190203e14bc139312195c1944c74069a72473d7825 giflib-debuginfo-5.1.4-3.el8_8.2.i686.rpm SHA-256: 202e6ee01aebfbbf92b028ca480f70eb2c3e9f4c510894eab6c7db90c7facc5d giflib-debuginfo-5.1.4-3.el8_8.2.x86_64.rpm SHA-256: 585f076c33b9d981c7c55acd7c0eff7c890dfe3e424d742872da2b46291184e6 giflib-debugsource-5.1.4-3.el8_8.2.i686.rpm SHA-256: 787802d78d3602aa06b76a90c473e6a1c726f2d551b44834047d12edb7253657 giflib-debugsource-5.1.4-3.el8_8.2.x86_64.rpm SHA-256: f21b37bd5bb8e2235e80e04a6a8cc26a623feee0b8f6b5dc554683d7cac2f38d giflib-utils-debuginfo-5.1.4-3.el8_8.2.i686.rpm SHA-256: d7ca8fd7244fdda91a0dda7313861c6d373aabd12d8071bf34f3ca9ac32b2b02 giflib-utils-debuginfo-5.1.4-3.el8_8.2.x86_64.rpm SHA-256: 22ed6530c261adbc1ff8ce12ceb9dd21b1892f413d538f6577322c57459d18d3 Red Hat Enterprise Linux Server - TUS 8.8 SRPM giflib-5.1.4-3.el8_8.2.src.rpm SHA-256: ba00626b3541b9d858d325870467575d298ad560867ba5d2d53a955aef0ff579 x86_64 giflib-5.1.4-3.el8_8.2.i686.rpm SHA-256: 73f7879ff7dec490fb7c478ae63adaff7547c38dbc2555d429e76b5b2b7b4058 giflib-5.1.4-3.el8_8.2.x86_64.rpm SHA-256: c21e053943b36e4a6aff9a190203e14bc139312195c1944c74069a72473d7825 giflib-debuginfo-5.1.4-3.el8_8.2.i686.rpm SHA-256: 202e6ee01aebfbbf92b028ca480f70eb2c3e9f4c510894eab6c7db90c7facc5d giflib-debuginfo-5.1.4-3.el8_8.2.x86_64.rpm SHA-256: 585f076c33b9d981c7c55acd7c0eff7c890dfe3e424d742872da2b46291184e6 giflib-debugsource-5.1.4-3.el8_8.2.i686.rpm SHA-256: 787802d78d3602aa06b76a90c473e6a1c726f2d551b44834047d12edb7253657 giflib-debugsource-5.1.4-3.el8_8.2.x86_64.rpm SHA-256: f21b37bd5bb8e2235e80e04a6a8cc26a623feee0b8f6b5dc554683d7cac2f38d giflib-utils-debuginfo-5.1.4-3.el8_8.2.i686.rpm SHA-256: d7ca8fd7244fdda91a0dda7313861c6d373aabd12d8071bf34f3ca9ac32b2b02 giflib-utils-debuginfo-5.1.4-3.el8_8.2.x86_64.rpm SHA-256: 22ed6530c261adbc1ff8ce12ceb9dd21b1892f413d538f6577322c57459d18d3 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.8 SRPM giflib-5.1.4-3.el8_8.2.src.rpm SHA-256: ba00626b3541b9d858d325870467575d298ad560867ba5d2d53a955aef0ff579 ppc64le giflib-5.1.4-3.el8_8.2.ppc64le.rpm SHA-256: 2ad3bfba68b983253a8b981c119737586ed3b0163e2a3abf792e87af4445eb5c giflib-debuginfo-5.1.4-3.el8_8.2.ppc64le.rpm SHA-256: 04dffc7d51117c2d9c84fed9ca2f95c7dc7f4e4cf943506bd98c10e231f3eb9e giflib-debugsource-5.1.4-3.el8_8.2.ppc64le.rpm SHA-256: d129c790fc6c74e0a34a1b117d9a9522bd305ab1c444447261cdb93bb39890d3 giflib-utils-debuginfo-5.1.4-3.el8_8.2.ppc64le.rpm SHA-256: b7086b1a4286e733b59a40114b76c9a2fba287ac86513bb98912069cb7596761 Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.8 SRPM giflib-5.1.4-3.el8_8.2.src.rpm SHA-256: ba00626b3541b9d858d325870467575d298ad560867ba5d2d53a955aef0ff579 x86_64 giflib-5.1.4-3.el8_8.2.i686.rpm SHA-256: 73f7879ff7dec490fb7c478ae63adaff7547c38dbc2555d429e76b5b2b7b4058 giflib-5.1.4-3.el8_8.2.x86_64.rpm SHA-256: c21e053943b36e4a6aff9a190203e14bc139312195c1944c74069a72473d7825 giflib-debuginfo-5.1.4-3.el8_8.2.i686.rpm SHA-256: 202e6ee01aebfbbf92b028ca480f70eb2c3e9f4c510894eab6c7db90c7facc5d giflib-debuginfo-5.1.4-3.el8_8.2.x86_64.rpm SHA-256: 585f076c33b9d981c7c55acd7c0eff7c890dfe3e424d742872da2b46291184e6 giflib-debugsource-5.1.4-3.el8_8.2.i686.rpm SHA-256: 787802d78d3602aa06b76a90c473e6a1c726f2d551b44834047d12edb7253657 giflib-debugsource-5.1.4-3.el8_8.2.x86_64.rpm SHA-256: f21b37bd5bb8e2235e80e04a6a8cc26a623feee0b8f6b5dc554683d7cac2f38d giflib-utils-debuginfo-5.1.4-3.el8_8.2.i686.rpm SHA-256: d7ca8fd7244fdda91a0dda7313861c6d373aabd12d8071bf34f3ca9ac32b2b02 giflib-utils-debuginfo-5.1.4-3.el8_8.2.x86_64.rpm SHA-256: 22ed6530c261adbc1ff8ce12ceb9dd21b1892f413d538f6577322c57459d18d3 The Red Hat security contact is secalert@redhat.com . More contact details at https://access.redhat.com/security/team/contact/ .