CVE-2026-104031 Red Hat CVE debrief

Who should care

System administrators and security teams responsible for SSSD and autofs responder service configurations should review and verify the autofs responder service configuration, monitor system memory usage for anomalies, and consider implementing compensating controls for memory exhaustion. They should also confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Why it matters

This vulnerability requires attention from system administrators and security teams responsible for SSSD and autofs responder service configurations. The potential for local attackers to exploit the vulnerability and cause memory exhaustion leading to a Denial of Service (DoS) necessitates review and verification of the autofs responder service configuration, monitoring of system memory usage, and consideration of compensating controls for memory exhaustion.

• Memory exhaustion leading to Denial of Service (DoS)
• Potential for local attackers to exploit the vulnerability
• Need for verification of affected versions and remediation steps

Technical summary

A flaw in SSSD's autofs responder service can lead to memory exhaustion and a Denial of Service (DoS) when a local attacker maintains an open connection and repeatedly submits valid requests. This vulnerability requires attention from system administrators and security teams responsible for SSSD and autofs responder service configurations. The potential for local attackers to exploit the vulnerability and cause memory exhaustion leading to a Denial of Service (DoS) necessitates review and verification of the autofs responder service configuration, monitoring of system memory usage, and consideration of compensating controls for memory exhaustion.

Defensive priority

Medium priority for systems with autofs responder service enabled

Recommended defensive actions

• Review and verify the autofs responder service configuration
• Monitor system memory usage for anomalies
• Consider implementing compensating controls for memory exhaustion
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and source item provide details on the vulnerability, but affected versions and remediation steps require verification from official sources. System administrators and security teams should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. They should also plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.

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.