RHSA-2026:46955HighCVSS 5.3
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
🔗 CVE IDs covered (1)
📋 Description
CVE-2026-66035 — libssh2: libssh2: Arbitrary code execution via heap buffer overflow during SSH negotiation
🎯 Affected products5
- Red Hat Hardened Images
- libssh2-main@aarch64 as a component of Red Hat Hardened Images
- libssh2-main@noarch as a component of Red Hat Hardened Images
- libssh2-main@src as a component of Red Hat Hardened Images
- libssh2-main@x86_64 as a component of Red Hat Hardened Images
✅ Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ Workaround: To reduce exposure, restrict SSH client connections to only trusted and verified SSH servers. Avoid initiating SSH connections to unknown or unverified hosts, as successful exploitation requires the client to connect to a malicious server.
🔗 References (5)
- selfhttps://access.redhat.com/errata/RHSA-2026:46955
- externalhttps://access.redhat.com/security/cve/CVE-2026-66035
- externalhttps://access.redhat.com/security/updates/classification/
- externalhttps://images.redhat.com/
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_46955.json