RHSA-2026:99726: Important: compat-openssl10 security update
The OpenSSL toolkit provides support for secure communications between machines. This version of OpenSSL package contains only the libraries and is provided for compatibility with previous releases and software that does not support compilation with OpenSSL-1.1.Security Fix(es): openssl: compat-openssl: DTLS Retransmits Handshake Messages From a Stale Buffer Offset (CVE-2026-84782) 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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/compat-openssl10to a version that resolves this vulnerability.Fixed in 1.0.2o-3.el8_4.2 - Upgrade
Upgrade
redhat/compat-openssl10-debuginfoto a version that resolves this vulnerability.Fixed in 1.0.2o-3.el8_4.2 - Upgrade
Upgrade
redhat/compat-openssl10-debugsourceto a version that resolves this vulnerability.Fixed in 1.0.2o-3.el8_4.2
Event History
Frequently Asked Questions
Which packages are covered by this update?
The update covers redhat/compat-openssl10, redhat/compat-openssl10-debuginfo, and redhat/compat-openssl10-debugsource.
Which systems are most likely to need this update?
Systems using the compat-openssl10 libraries for compatibility with previous releases or with software that cannot be compiled against OpenSSL 1.1 are in scope.