LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript
Description
LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript
Remediation
Apply vendor security updates immediately. Monitor for exploitation attempts and review access logs.
---METADATA---
VENDOR: NLnet Labs
PRODUCT: Unbound
AFFECTED_VERSIONS: 0 up to (excluding) 1.25.1
CONFIDENCE: high
MISSING: none
---END_METADATA---
Description Summary:
A resource exhaustion vulnerability in NLnet Labs Unbound allows for denial-of-service via inefficient algorithmic complexity and improper resource throttling.
Executive Summary:
A denial-of-service vulnerability in NLnet Labs Unbound allows remote, unauthenticated attackers to cause resource exhaustion.
Vulnerability Details
CVE-ID: CVE-2026-41292
Affected Software: NLnet Labs Unbound
Affected Versions: 0 up to (excluding) 1.25.1
Vulnerability: The software is susceptible to resource exhaustion (CWE-407/CWE-770) due to inefficient algorithmic complexity, allowing an unauthenticated remote attacker to trigger excessive resource consumption.
Business Impact
Successful exploitation results in a denial-of-service, rendering the DNS resolver unresponsive. With a CVSS score of 7.5 and the ability to be triggered remotely by unauthenticated attackers, this represents a high risk to network availability and service continuity for any infrastructure relying on Unbound for DNS resolution.
Remediation Plan
Immediate Action: Update NLnet Labs Unbound to version 1.25.1 or later to implement the necessary resource limits and algorithmic fixes.
Proactive Monitoring: Monitor DNS resolver performance metrics, specifically CPU and memory utilization, for spikes that could indicate an ongoing denial-of-service attempt.
Compensating Controls: Use rate-limiting at the network perimeter to throttle excessive incoming DNS traffic, potentially reducing the impact of a DoS attempt while patching is underway.
Exploitation Status
Public Exploit Available: Unknown
Analyst Notes: As of May 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is inherently dangerous due to its remote, unauthenticated nature.
Analyst Recommendation
Due to the critical role of DNS in network operations and the remote exploitability of this flaw, immediate patching is required. Organizations should prioritize updating all instances of Unbound to version 1.25.1 to ensure continued service availability and to mitigate the risk of remote service disruption.