RHSA-2026:52857

Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation.

When adding a key to a remote agent constraint extensions such as [email protected] were not serialized in the request.

The Verify() method for FIDO/U2F security key types ([email protected], [email protected]) did not check the User Presence flag.

A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop.

The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL (0).

The RSA and DSA public key parsers did not enforce size limits on key parameters.

A flaw was identified in Argo CD, the GitOps engine used by Red Hat OpenShift GitOps, that could allow an unauthenticated attacker with network access to the Argo CD repo-server to achieve remote code execution.

When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as force-command after a sec…

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree.

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree.

SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate.