An integer overflow vulnerability (CVE-2026-27622, CVSS 7.8 HIGH) in OpenEXR allows arbitrary code execution via maliciously crafted EXR image files. Affected versions are openexr before 3.2.6, 3.3.0 through 3.3.7, and 3.4.0 through 3.4.5. The flaw is remediated by upgrading to openexr version 3.2.6, 3.3.8, or 3.4.6.
Red Hat Product Errata RHSA-2026:12341 - Security Advisory Issued: 2026-04-30 Updated: 2026-04-30 RHSA-2026:12341 - Security Advisory Overview Updated Packages Synopsis Important: OpenEXR 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 OpenEXR 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 OpenEXR is a high dynamic-range (HDR) image file format developed by Industrial Light & Magic for use in computer imaging applications. This package contains libraries and sample applications for handling the format. Security Fix(es): openexr: OpenEXR: Arbitrary code execution via integer overflow in EXR file processing (CVE-2026-27622) 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 - 2444251 - CVE-2026-27622 openexr: OpenEXR: Arbitrary code execution via integer overflow in EXR file processing CVEs CVE-2026-27622 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 OpenEXR-2.2.0-12.el8_4.1.src.rpm SHA-256: 4ac40cfef43357df34ca83c7588cd33d8a50cec96f0ee6e360ced9cf7b0b69ac x86_64 OpenEXR-debuginfo-2.2.0-12.el8_4.1.i686.rpm SHA-256: 74c94e9f44a23bad50cc0068981ac4eb316aeba5e13f2b55212dca3769d12937 OpenEXR-debuginfo-2.2.0-12.el8_4.1.x86_64.rpm SHA-256: dd42d5d37b6b05b7f05d7734fd79b270702085b8cde9da3b40e0a483290cbc99 OpenEXR-debugsource-2.2.0-12.el8_4.1.i686.rpm SHA-256: c9b476ff0d7f7c060e3acb135548ae44bca26885ebf0f10b79f308a5169e7715 OpenEXR-debugsource-2.2.0-12.el8_4.1.x86_64.rpm SHA-256: 27ec5053aee25844e8c357c88b8ecce26b57078823c6e6873474e25e8a002425 OpenEXR-libs-2.2.0-12.el8_4.1.i686.rpm SHA-256: 4765be8d9aa4774d50d2014554f982defc9e66ab23c37e81b035ed707045e7e7 OpenEXR-libs-2.2.0-12.el8_4.1.x86_64.rpm SHA-256: c3dd62b5c5238affe0d5876977ee5accaa41982558cbf1665e6930cd5cd56720 OpenEXR-libs-debuginfo-2.2.0-12.el8_4.1.i686.rpm SHA-256: 1dfda5b0ad80288f46432b9fcf10e53c33fd5b8003ed5170ec0fda0b7f6f3925 OpenEXR-libs-debuginfo-2.2.0-12.el8_4.1.x86_64.rpm SHA-256: 1051eb9324412e0b2f6c491f85fb161f4eaaf4898ec9741ec5c4a63eccce126b Red Hat Enterprise Linux Server - AUS 8.4 SRPM OpenEXR-2.2.0-12.el8_4.1.src.rpm SHA-256: 4ac40cfef43357df34ca83c7588cd33d8a50cec96f0ee6e360ced9cf7b0b69ac x86_64 OpenEXR-debuginfo-2.2.0-12.el8_4.1.i686.rpm SHA-256: 74c94e9f44a23bad50cc0068981ac4eb316aeba5e13f2b55212dca3769d12937 OpenEXR-debuginfo-2.2.0-12.el8_4.1.x86_64.rpm SHA-256: dd42d5d37b6b05b7f05d7734fd79b270702085b8cde9da3b40e0a483290cbc99 OpenEXR-debugsource-2.2.0-12.el8_4.1.i686.rpm SHA-256: c9b476ff0d7f7c060e3acb135548ae44bca26885ebf0f10b79f308a5169e7715 OpenEXR-debugsource-2.2.0-12.el8_4.1.x86_64.rpm SHA-256: 27ec5053aee25844e8c357c88b8ecce26b57078823c6e6873474e25e8a002425 OpenEXR-libs-2.2.0-12.el8_4.1.i686.rpm SHA-256: 4765be8d9aa4774d50d2014554f982defc9e66ab23c37e81b035ed707045e7e7 OpenEXR-libs-2.2.0-12.el8_4.1.x86_64.rpm SHA-256: c3dd62b5c5238affe0d5876977ee5accaa41982558cbf1665e6930cd5cd56720 OpenEXR-libs-debuginfo-2.2.0-12.el8_4.1.i686.rpm SHA-256: 1dfda5b0ad80288f46432b9fcf10e53c33fd5b8003ed5170ec0fda0b7f6f3925 OpenEXR-libs-debuginfo-2.2.0-12.el8_4.1.x86_64.rpm SHA-256: 1051eb9324412e0b2f6c491f85fb161f4eaaf4898ec9741ec5c4a63eccce126b The Red Hat security contact is secalert@redhat.com . More contact details at https://access.redhat.com/security/team/contact/ .