Red Hat Product Errata RHSA-2026:52951 - Security Advisory Issued: 2026-08-10 Updated: 2026-08-10 RHSA-2026:52951 - Security Advisory Overview Updated Packages Synopsis Moderate: libgcrypt 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 libgcrypt is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. 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 libgcrypt library provides general-purpose implementations of various cryptographic algorithms. Security Fix(es): Libgcrypt: Libgcrypt: Denial of Service and buffer overflow via crafted ECDH ciphertext (CVE-2026-41989) 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 10.0 x86_64 Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.0 s390x Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.0 ppc64le Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.0 aarch64 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.0 aarch64 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.0 s390x Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.0 ppc64le Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.0 x86_64 Fixes BZ - 2461063 - CVE-2026-41989 Libgcrypt: Libgcrypt: Denial of Service and buffer overflow via crafted ECDH ciphertext CVEs CVE-2026-41989 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 - Extended Update Support 10.0 SRPM libgcrypt-1.11.0-5.el10_0.1.src.rpm SHA-256: f0b170a972d55b946cbc2312c97170dc5079b8305313f6040e40c39b8c4ff09c x86_64 libgcrypt-1.11.0-5.el10_0.1.x86_64.rpm SHA-256: c9fe393514e4b477c2b7bc1e23411cb9d1619175b4985f14b2bdf9ff50f28949 libgcrypt-debuginfo-1.11.0-5.el10_0.1.x86_64.rpm SHA-256: 87094c03cbef8e21531f2148ca982037396112bbc4c6df5f69126085479f5582 libgcrypt-debuginfo-1.11.0-5.el10_0.1.x86_64.rpm SHA-256: 87094c03cbef8e21531f2148ca982037396112bbc4c6df5f69126085479f5582 libgcrypt-debugsource-1.11.0-5.el10_0.1.x86_64.rpm SHA-256: 3fadb2efce70ad92fffe2910474bd9e908fceb28ab7e1203645145d010373428 libgcrypt-debugsource-1.11.0-5.el10_0.1.x86_64.rpm SHA-256: 3fadb2efce70ad92fffe2910474bd9e908fceb28ab7e1203645145d010373428 libgcrypt-devel-1.11.0-5.el10_0.1.x86_64.rpm SHA-256: 6dfd185e16fa3085602600138bfa52da20393fca948c9babfe2f1c2332b167c2 libgcrypt-devel-debuginfo-1.11.0-5.el10_0.1.x86_64.rpm SHA-256: 787daee5e5f95ccbac0f0699b3184b5071909e309831a2fd01562401c8c626d7 libgcrypt-devel-debuginfo-1.11.0-5.el10_0.1.x86_64.rpm SHA-256: 787daee5e5f95ccbac0f0699b3184b5071909e309831a2fd01562401c8c626d7 Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.0 SRPM libgcrypt-1.11.0-5.el10_0.1.src.rpm SHA-256: f0b170a972d55b946cbc2312c97170dc5079b8305313f6040e40c39b8c4ff09c s390x libgcrypt-1.11.0-5.el10_0.1.s390x.rpm SHA-256: cbe7e9bb4086c83602569937aa64f9aa9b08277d3b46dc6f05dbc45734bf5481 libgcrypt-debuginfo-1.11.0-5.el10_0.1.s390x.rpm SHA-256: 6d147d2aee71b0ab121e372c332e62d6eb83dbdab9a52f540e7d12994a6bd5c3 libgcrypt-debuginfo-1.11.0-5.el10_0.1.s390x.rpm SHA-256: 6d147d2aee71b0ab121e372c332e62d6eb83dbdab9a52f540e7d12994a6bd5c3 libgcrypt-debugsource-1.11.0-5.el10_0.1.s390x.rpm SHA-256: 8e40e9c5e7aedf036dd85e6dc7af7a701069106d8b65f3cfd47f5710ac8b8f95 libgcrypt-debugsource-1.11.0-5.el10_0.1.s390x.rpm SHA-256: 8e40e9c5e7aedf036dd85e6dc7af7a701069106d8b65f3cfd47f5710ac8b8f95 libgcrypt-devel-1.11.0-5.el10_0.1.s390x.rpm SHA-256: 5e0ebd1b70ed2ecf9396ff2729542303a3eb53d7de5ca7a19c3ae44f68881809 libgcrypt-devel-debuginfo-1.11.0-5.el10_0.1.s390x.rpm SHA-256: 3108703705b299f15e56ee5ace1709c8936e79ec40ce50104b8327808167ac5b libgcrypt-devel-debuginfo-1.11.0-5.el10_0.1.s390x.rpm SHA-256: 3108703705b299f15e56ee5ace1709c8936e79ec40ce50104b8327808167ac5b Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.0 SRPM libgcrypt-1.11.0-5.el10_0.1.src.rpm SHA-256: f0b170a972d55b946cbc2312c97170dc5079b8305313f6040e40c39b8c4ff09c ppc64le libgcrypt-1.11.0-5.el10_0.1.ppc64le.rpm SHA-256: fc977af869c060b77b6a04d57a8a9cc932c3c2bac6878667938eb6a57d6f788b libgcrypt-debuginfo-1.11.0-5.el10_0.1.ppc64le.rpm SHA-256: ad09edf15fb52867fc90c0d64b4ce07fd0b07efcb7e5964215934f206aed8479 libgcrypt-debuginfo-1.11.0-5.el10_0.1.ppc64le.rpm SHA-256: ad09edf15fb52867fc90c0d64b4ce07fd0b07efcb7e5964215934f206aed8479 libgcrypt-debugsource-1.11.0-5.el10_0.1.ppc64le.rpm SHA-256: b627567bfe90e70df3e4d6af91b11b2f654a436d1cca1310667bd3d8bc0ef6c4 libgcrypt-debugsource-1.11.0-5.el10_0.1.ppc64le.rpm SHA-256: b627567bfe90e70df3e4d6af91b11b2f654a436d1cca1310667bd3d8bc0ef6c4 libgcrypt-devel-1.11.0-5.el10_0.1.ppc64le.rpm SHA-256: 9e9a3aac6249141c4be929cc29b837076a95c67ff22b8b17716f103ea5db59b7 libgcrypt-devel-debuginfo-1.11.0-5.el10_0.1.ppc64le.rpm SHA-256: a1f2647ded91d10a46b7ffa46c3b23e3c20f79672c5cd9c16538517a38f36e4d libgcrypt-devel-debuginfo-1.11.0-5.el10_0.1.ppc64le.rpm SHA-256: a1f2647ded91d10a46b7ffa46c3b23e3c20f79672c5cd9c16538517a38f36e4d Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.0 SRPM libgcrypt-1.11.0-5.el10_0.1.src.rpm SHA-256: f0b170a972d55b946cbc2312c97170dc5079b8305313f6040e40c39b8c4ff09c aarch64 libgcrypt-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: b3542c19a599d216e93a3b95691cc449843c4998e9b229e42bc1cbdc1ec15d71 libgcrypt-debuginfo-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: 99e15cdd27820414c0335f22c09ba6291a1df9208495291fe7913ea46d52b122 libgcrypt-debuginfo-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: 99e15cdd27820414c0335f22c09ba6291a1df9208495291fe7913ea46d52b122 libgcrypt-debugsource-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: 89db75e6ec7ff9df143e20d310e1847fb17637cbcbaaa66a98d1c45a0bdc4cc3 libgcrypt-debugsource-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: 89db75e6ec7ff9df143e20d310e1847fb17637cbcbaaa66a98d1c45a0bdc4cc3 libgcrypt-devel-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: a13a09b20c4abb94a2826244967c558a53ccea51965331ebe88d9e404fba10c6 libgcrypt-devel-debuginfo-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: ee353242592b13122869e4d6ed7038d15b847523b62a11625837d2ecf70428cd libgcrypt-devel-debuginfo-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: ee353242592b13122869e4d6ed7038d15b847523b62a11625837d2ecf70428cd Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.0 SRPM libgcrypt-1.11.0-5.el10_0.1.src.rpm SHA-256: f0b170a972d55b946cbc2312c97170dc5079b8305313f6040e40c39b8c4ff09c aarch64 libgcrypt-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: b3542c19a599d216e93a3b95691cc449843c4998e9b229e42bc1cbdc1ec15d71 libgcrypt-debuginfo-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: 99e15cdd27820414c0335f22c09ba6291a1df9208495291fe7913ea46d52b122 libgcrypt-debuginfo-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: 99e15cdd27820414c0335f22c09ba6291a1df9208495291fe7913ea46d52b122 libgcrypt-debugsource-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: 89db75e6ec7ff9df143e20d310e1847fb17637cbcbaaa66a98d1c45a0bdc4cc3 libgcrypt-debugsource-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: 89db75e6ec7ff9df143e20d310e1847fb17637cbcbaaa66a98d1c45a0bdc4cc3 libgcrypt-devel-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: a13a09b20c4abb94a2826244967c558a53ccea51965331ebe88d9e404fba10c6 libgcrypt-devel-debuginfo-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: ee353242592b13122869e4d6ed7038d15b847523b62a11625837d2ecf70428cd libgcrypt-devel-debuginfo-1.11.0-5.el10_0.1.aarch64.rpm SHA-256: ee353242592b13122869e4d6ed7038d15b847523b62a11625837d2ecf70428cd Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.0 SRPM libgcrypt-1.11.0-5.el10_0.1.src.rpm SHA-256: f0b170a972d55b946cbc2312c97170dc5079b8305313f6040e40c39b8c4ff09c s390x libgcrypt-1.11.0-5.el10_0.1.s390x.rpm SHA-256: cbe7e9bb4086c83602569937aa64f9aa9b08277d3b46dc6f05dbc45734bf5481 libgcrypt-debuginfo-1.11.0-5.el10_0.1.s390x.rpm SHA-256: 6d147d2aee71b0ab121e372c332e62d6eb83dbdab9a52f540e7d12994a6bd5c3 libgcrypt-debuginfo-1.11.0-5.el10_0.1.s390x.rpm SHA-256: 6d147d2aee71b0ab121e372c332e62d6eb83dbdab9a52f540e7d12994a6bd5c3 libgcrypt-debugsource-1.11.0-5.el10_0.1.s390x.rpm SHA-256: 8e40e9c5e7aedf036dd85e6dc7af7a701069106d8b65f3cfd47f5710ac8b8f95 libgcrypt-debugsource-1.11.0-5.el10_0.1.s390x.rpm SHA-256: 8e40e9c5e7aedf036dd85e6dc7af7a701069106d8b65f3cfd47f5710ac8b8f95 libgcrypt-devel-1.11.0-5.el10_0.1.s390x.rpm SHA-256: 5e0ebd1b70ed2ecf9396ff2729542303a3eb53d7de5ca7a19c3ae44f68881809 libgcrypt-devel-debuginfo-1.11.0-5.el10_0.1.s390x.rpm SHA-256: 3108703705b299f15e56ee5ace1709c8936e79ec40ce50104b8327808167ac5b libgcrypt-devel-debuginfo-1.11.0-5.el10_0.1.s390x.rpm SHA-256: 3108703705b299f15e56ee5ace1709c8936e79ec40ce50104b8327808167ac5b Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.0 SRPM libgcrypt-1.11.0-5.el10_0.1.src.rpm SHA-256: f0b170a972d55b946cbc2312c97170dc5079b8305313f6040e40c39b8c4ff09c ppc64le libgcrypt-1.11.0-5.el10_0.1.ppc64le.rpm SHA-256: fc977af869c060b77b6a04d57a8a9cc932c3c2bac6878667938eb6a57d6f788b libgcrypt-debuginfo-1.11.0-5.el10_0.1.ppc64le.rpm SHA-256: ad09edf15fb52867fc90c0d64b4ce07fd0b07efcb7e5964215934f206aed8479 libgcrypt-debuginfo-1.11.0-5.el10_0.1.ppc64le.rpm SHA-256: ad09edf15fb52867fc90c0d64b4ce07fd0b07efcb7e5964215934f206aed8479 libgcrypt-debugsource-1.11.0-5.el10_0.1.ppc64le.rpm SHA-256: b627567bfe90e70df3e4d6af91