RHSA-2026:36217 — Security Advisory
Red Hat Security Advisory: compat-openssl10 security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · July 7, 2026
Updated · November 4, 2026
Topic
An update for compat-openssl10 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
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: OpenSSL: Denial of Service due to NULL pointer dereference in CMS EnvelopedData processing (CVE-2026-28390)
-
openssl: Heap Use-After-Free in OpenSSL PKCS7_verify() (CVE-2026-45447)
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.