Red Hat Product Errata RHSA-2026:19066 - Security Advisory Issued: 2026-05-19 Updated: 2026-05-19 RHSA-2026:19066 - Security Advisory Overview Updated Packages Synopsis Moderate: openssl 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 openssl is now available for Red Hat Enterprise Linux 10. 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 OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library. Security Fix(es): openssl: openssl: Information Disclosure from Uninitialized Memory via Invalid RSA Public Key (CVE-2026-31790) 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 10 x86_64 Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 x86_64 Red Hat Enterprise Linux for IBM z Systems 10 s390x Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2 s390x Red Hat Enterprise Linux for Power, little endian 10 ppc64le Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2 ppc64le Red Hat Enterprise Linux for ARM 64 10 aarch64 Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2 aarch64 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2 aarch64 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.2 s390x Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.2 ppc64le Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2 x86_64 Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2 x86_64 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2 aarch64 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 10.2 ppc64le Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 10.2 s390x Fixes BZ - 2451094 - CVE-2026-31790 openssl: openssl: Information Disclosure from Uninitialized Memory via Invalid RSA Public Key CVEs CVE-2026-31790 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 for x86_64 10 SRPM openssl-3.5.5-2.el10_2.src.rpm SHA-256: c24d997117605c20aaa72e53e882eb2366e817d161aa53624d1cc8fe586f2a32 x86_64 openssl-3.5.5-2.el10_2.x86_64.rpm SHA-256: 76fcd8f4adfd8bbdb9d8c29d20e9f27b7a3a22008ce2f2a88df818584d50bc0e openssl-debuginfo-3.5.5-2.el10_2.x86_64.rpm SHA-256: dba538624b471db1f98539ba0ce5e81bf3c9d80845de3b13b5d63d3cbe51d7b8 openssl-debuginfo-3.5.5-2.el10_2.x86_64.rpm SHA-256: dba538624b471db1f98539ba0ce5e81bf3c9d80845de3b13b5d63d3cbe51d7b8 openssl-debugsource-3.5.5-2.el10_2.x86_64.rpm SHA-256: 2b36882d756143cbaabc15370083f9807e157617d99db6a1b126a6aed6a6ab47 openssl-debugsource-3.5.5-2.el10_2.x86_64.rpm SHA-256: 2b36882d756143cbaabc15370083f9807e157617d99db6a1b126a6aed6a6ab47 openssl-devel-3.5.5-2.el10_2.x86_64.rpm SHA-256: 6b056448b0c41bd11d0bf4f65ff04a959849905dbe328ddd730006c9de86aabc openssl-libs-3.5.5-2.el10_2.x86_64.rpm SHA-256: bccffc26c87476f6764a5960ebf272f98346f48ab72ad38d5e1d9a415313f86b openssl-libs-debuginfo-3.5.5-2.el10_2.x86_64.rpm SHA-256: f885efdc5da98c5827b0eaee32d5fce77775a47c38f758e5eed92328a93b6f81 openssl-libs-debuginfo-3.5.5-2.el10_2.x86_64.rpm SHA-256: f885efdc5da98c5827b0eaee32d5fce77775a47c38f758e5eed92328a93b6f81 openssl-perl-3.5.5-2.el10_2.x86_64.rpm SHA-256: 53a1bb07aba857ced40c6689c720cc28d3f3eb74c5a9592c249765d88432870b Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 SRPM openssl-3.5.5-2.el10_2.src.rpm SHA-256: c24d997117605c20aaa72e53e882eb2366e817d161aa53624d1cc8fe586f2a32 x86_64 openssl-3.5.5-2.el10_2.x86_64.rpm SHA-256: 76fcd8f4adfd8bbdb9d8c29d20e9f27b7a3a22008ce2f2a88df818584d50bc0e openssl-debuginfo-3.5.5-2.el10_2.x86_64.rpm SHA-256: dba538624b471db1f98539ba0ce5e81bf3c9d80845de3b13b5d63d3cbe51d7b8 openssl-debuginfo-3.5.5-2.el10_2.x86_64.rpm SHA-256: dba538624b471db1f98539ba0ce5e81bf3c9d80845de3b13b5d63d3cbe51d7b8 openssl-debugsource-3.5.5-2.el10_2.x86_64.rpm SHA-256: 2b36882d756143cbaabc15370083f9807e157617d99db6a1b126a6aed6a6ab47 openssl-debugsource-3.5.5-2.el10_2.x86_64.rpm SHA-256: 2b36882d756143cbaabc15370083f9807e157617d99db6a1b126a6aed6a6ab47 openssl-devel-3.5.5-2.el10_2.x86_64.rpm SHA-256: 6b056448b0c41bd11d0bf4f65ff04a959849905dbe328ddd730006c9de86aabc openssl-libs-3.5.5-2.el10_2.x86_64.rpm SHA-256: bccffc26c87476f6764a5960ebf272f98346f48ab72ad38d5e1d9a415313f86b openssl-libs-debuginfo-3.5.5-2.el10_2.x86_64.rpm SHA-256: f885efdc5da98c5827b0eaee32d5fce77775a47c38f758e5eed92328a93b6f81 openssl-libs-debuginfo-3.5.5-2.el10_2.x86_64.rpm SHA-256: f885efdc5da98c5827b0eaee32d5fce77775a47c38f758e5eed92328a93b6f81 openssl-perl-3.5.5-2.el10_2.x86_64.rpm SHA-256: 53a1bb07aba857ced40c6689c720cc28d3f3eb74c5a9592c249765d88432870b Red Hat Enterprise Linux for IBM z Systems 10 SRPM openssl-3.5.5-2.el10_2.src.rpm SHA-256: c24d997117605c20aaa72e53e882eb2366e817d161aa53624d1cc8fe586f2a32 s390x openssl-3.5.5-2.el10_2.s390x.rpm SHA-256: d6bdf78f13581a0c8982d2e6bd98e00b441998976aa5217fa6c8851fdae1923b openssl-debuginfo-3.5.5-2.el10_2.s390x.rpm SHA-256: 06b601cc87e7e3ff4d2bb21ec242cfb6a288e53713f2ccbc0940117b776ea988 openssl-debuginfo-3.5.5-2.el10_2.s390x.rpm SHA-256: 06b601cc87e7e3ff4d2bb21ec242cfb6a288e53713f2ccbc0940117b776ea988 openssl-debugsource-3.5.5-2.el10_2.s390x.rpm SHA-256: e8e7e0364a02df7bf4e3755a41f86cd18567b51b4c224671b3583a1ae201ed08 openssl-debugsource-3.5.5-2.el10_2.s390x.rpm SHA-256: e8e7e0364a02df7bf4e3755a41f86cd18567b51b4c224671b3583a1ae201ed08 openssl-devel-3.5.5-2.el10_2.s390x.rpm SHA-256: 1ee118fd29e39d55f6453d3edd0214dbe1e160db6c9ba7cb815918167f2c52e5 openssl-libs-3.5.5-2.el10_2.s390x.rpm SHA-256: f7ae505f7678100c0804bd8775f643517711d3950e0ef8c1ccae366278b2980b openssl-libs-debuginfo-3.5.5-2.el10_2.s390x.rpm SHA-256: 117675d00c7ae45b545c6fe27bc729d5e80b1e04846f149303da3ba0679c8647 openssl-libs-debuginfo-3.5.5-2.el10_2.s390x.rpm SHA-256: 117675d00c7ae45b545c6fe27bc729d5e80b1e04846f149303da3ba0679c8647 openssl-perl-3.5.5-2.el10_2.s390x.rpm SHA-256: 91fa0e417992c82cde6e6f9cdce0beda77d828b1e1238529ae37edaf49f121bb Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2 SRPM openssl-3.5.5-2.el10_2.src.rpm SHA-256: c24d997117605c20aaa72e53e882eb2366e817d161aa53624d1cc8fe586f2a32 s390x openssl-3.5.5-2.el10_2.s390x.rpm SHA-256: d6bdf78f13581a0c8982d2e6bd98e00b441998976aa5217fa6c8851fdae1923b openssl-debuginfo-3.5.5-2.el10_2.s390x.rpm SHA-256: 06b601cc87e7e3ff4d2bb21ec242cfb6a288e53713f2ccbc0940117b776ea988 openssl-debuginfo-3.5.5-2.el10_2.s390x.rpm SHA-256: 06b601cc87e7e3ff4d2bb21ec242cfb6a288e53713f2ccbc0940117b776ea988 openssl-debugsource-3.5.5-2.el10_2.s390x.rpm SHA-256: e8e7e0364a02df7bf4e3755a41f86cd18567b51b4c224671b3583a1ae201ed08 openssl-debugsource-3.5.5-2.el10_2.s390x.rpm SHA-256: e8e7e0364a02df7bf4e3755a41f86cd18567b51b4c224671b3583a1ae201ed08 openssl-devel-3.5.5-2.el10_2.s390x.rpm SHA-256: 1ee118fd29e39d55f6453d3edd0214dbe1e160db6c9ba7cb815918167f2c52e5 openssl-libs-3.5.5-2.el10_2.s390x.rpm SHA-256: f7ae505f7678100c0804bd8775f643517711d3950e0ef8c1ccae366278b2980b openssl-libs-debuginfo-3.5.5-2.el10_2.s390x.rpm SHA-256: 117675d00c7ae45b545c6fe27bc729d5e80b1e04846f149303da3ba0679c8647 openssl-libs-debuginfo-3.5.5-2.el10_2.s390x.rpm SHA-256: 117675d00c7ae45b545c6fe27bc729d5e80b1e04846f149303da3ba0679c8647 openssl-perl-3.5.5-2.el10_2.s390x.rpm SHA-256: 91fa0e417992c82cde6e6f9cdce0beda77d828b1e1238529ae37edaf49f121bb Red Hat Enterprise Linux for Power, little endian 10 SRPM openssl-3.5.5-2.el10_2.src.rpm SHA-256: c24d997117605c20aaa72e53e882eb2366e817d161aa53624d1cc8fe586f2a32 ppc64le openssl-3.5.5-2.el10_2.ppc64le.rpm SHA-256: fd730d3cdafa421eb1943e0a69a0ba265bafce9c08c91574ad587469aad78eac openssl-debuginfo-3.5.5-2.el10_2.ppc64le.rpm SHA-256: 842c2c1a316fac435cffaf1a3f80dfad94cd63f1075007cc304a17a6616ab529 openssl-debuginfo-3.5.5-2.el10_2.ppc64le.rpm SHA-256: 842c2c1a316fac435cffaf1a3f80dfad94cd63f1075007cc304a17a6616ab529 openssl-debugsource-3.5.5-2.el10_2.ppc64le.rpm SHA-256: d101b1f2b38eac82e7fd4acdcec599e5698539f752209b132c0cf290566ded15 openssl-debugsource-3.5.5-2.el10_2.ppc64le.rpm SHA-256: d101b1f2b38eac82e7fd4acdcec599e5698539f752209b132c0cf290566ded15 openssl-devel-3.5.5-2.el10_2.ppc64le.rpm SHA-256: 29f10a159671e8424d85096889fedcda3e1f797904c72b594c8a7dd9fae0f9a1 openssl-libs-3.5.5-2.el10_2.ppc64le.rpm SHA-256: 10b3636fbb9a5881e28ae34c754efd56fe1ebec71adc4ece74e218ac0d013a8d openssl-libs-debuginfo-3.5.5-2.el10_2.ppc64le.rpm SHA-256: a2f066144451c166ccd4b7b35337850bbb8df0ffa55aba9d2319ecbf4ca99d47 openssl-libs-debuginfo-3.5.5-2.el10_2.ppc64le.rpm SHA-256: a2f066144451c166ccd4b7b35337850bbb8df0ffa55aba9d2319ecbf4ca99d47 openssl-perl-3.5.5-2.el10_2.ppc64le.rpm SHA-256: 42ff19b2f4b8f87dd8dc2acb8caaba4ed6c5f071692e3bbd487573eb547824e1 Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2 SRPM openssl-3.5.5-2.el10_2.src.rpm SHA-256: c24d997117605c20aaa72e53e882eb2366e817d161aa53624d1cc8fe586f2a32 ppc64le openssl-3.5.5-2.el10_2.ppc64le.rpm SHA-256: fd730d3cdafa421eb1943e0a69a0ba265bafce9c08c91574ad587469aad78eac openssl-debuginfo-3.5.5-2.el10_2.ppc64le.rpm SHA-256: 842c2c1a316fac435cffaf1a3f80dfad94cd63f1075007cc304a17a6616ab529 openssl-debuginfo-3.5.5-2.