CVE-2026-78701 Red Hat CVE debrief

Who should care

Defenders responsible for 389-ds-base deployments, especially in Red Hat Enterprise Linux 10 and 9, should assess exposure and prioritize verifying the impact of potential connection-stall DoS attacks.

Why it matters

Defenders should prioritize verifying exposure in 389-ds-base deployments, especially in Red Hat Enterprise Linux 10 and 9, and assess the impact of potential connection-stall DoS attacks. The corpus does not establish versions, exploitation, impact, or remediation beyond vendor advisories.

• Verify exposure in 389-ds-base deployments to prevent potential DoS attacks.
• Assess the impact of connection-stall attacks on 389-ds-base resource exhaustion.
• Prioritize patching and remediation based on vendor advisories for 389-ds-base.
• Monitor 389-ds-base for unusual connection behavior or resource exhaustion.

Technical summary

The vulnerability in 389-ds-base allows a remote, authenticated attacker to cause a connection to stall, leading to resource exhaustion and a Denial of Service (DoS) for the server. This is related to an incomplete fix for CVE-2026-11610. The issue is in the Simple Authentication and Security Layer (SASL) UNBIND process. Defenders should prioritize verifying exposure in 389-ds-base deployments, especially in Red Hat Enterprise Linux 10 and 9, and assess the impact of potential connection-stall DoS attacks. The corpus does not establish versions, exploitation, impact, or remediation beyond vendor advisories.

Defensive priority

Defenders should prioritize verifying exposure in 389-ds-base deployments, especially in Red Hat Enterprise Linux 10 and 9, and assess the impact of potential connection-stall DoS attacks.

Recommended defensive actions

• Verify 389-ds-base versions and configurations in Red Hat Enterprise Linux 10 and 9 deployments.
• Assess exposure to potential connection-stall DoS attacks in 389-ds-base.
• Monitor 389-ds-base for unusual connection behavior or resource exhaustion.
• Apply vendor advisories and patches for 389-ds-base.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and source item provide details on the vulnerability in 389-ds-base, including its impact on Red Hat Enterprise Linux 10 and 9. However, the corpus does not establish versions, exploitation, impact, or remediation beyond vendor advisories.

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.