CVE-2026-110924 Red Hat CVE debrief

Who should care

System administrators and security teams responsible for OpenSSH configurations, especially in environments using GSSAPI authentication, should assess exposure and prioritize verification and remediation efforts.

Why it matters

CVE-2026-110924 is a medium-severity vulnerability in OpenSSH that allows GSSAPI delegated credentials to be stored after a failed authentication attempt. Defenders should prioritize verifying and updating OpenSSH configurations, especially in environments using GSSAPI authentication, to prevent potential unauthorized access. The impact of this vulnerability is limited to the specific connection and requires a later successful login attempt to be exploited. However, the potential for unauthorized access makes it essential for system administrators and security teams to assess exposure and take remediation steps.

• Potential unauthorized access on later successful logins
• Need to verify and update OpenSSH configurations
• Possible impact on authentication and authorization processes
• Requires review of GSSAPI authentication settings

Technical summary

The CVE record describes a flaw in OpenSSH where GSSAPI delegated credentials can be stored after a failed authentication attempt. This could potentially allow a later successful login to be unauthorized, as the leftover state from the failed attempt could still grant access. The vulnerability affects OpenSSH and requires a later successful login attempt to be exploited. Defenders should prioritize verifying and updating OpenSSH configurations, especially in environments using GSSAPI authentication, to prevent potential unauthorized access.

Defensive priority

Defenders should prioritize verifying and updating OpenSSH configurations, especially in environments using GSSAPI authentication, to prevent potential unauthorized access.

Recommended defensive actions

• Verify OpenSSH configurations for GSSAPI authentication
• Update OpenSSH to the latest version if available
• Monitor authentication attempts and credential usage
• Review and adjust GSSAPI authentication settings as needed
• Perform vulnerability scanning to identify potentially affected systems
• Implement compensating controls for exposed systems while remediation is scheduled and verified
• Track exceptions and retest remediated assets

Evidence notes

The CVE record and source item provide details on the flaw in OpenSSH and its potential impact. Specific version information and remediation steps are not provided in the corpus. However, defenders should verify OpenSSH configurations, especially in environments using GSSAPI authentication, and review GSSAPI authentication settings as needed. The evidence is limited, and further verification is required to determine the full scope of the vulnerability.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.