CVE-2026-47219 delvedor CVE debrief

Who should care

Defenders responsible for applications using the find-my-way framework should assess their exposure and prioritize verification of vulnerable versions and potential DoS attacks. This includes reviewing system inventories, identifying potentially affected components, and planning for upgrades or mitigations as necessary. Additionally, defenders should consider implementing compensating controls to mitigate the impact of potential DoS attacks and monitor for

Why it matters

CVE-2026-47219 is a remotely triggerable DoS vulnerability in the find-my-way framework when used with Node's HTTP/2 server. Defenders should prioritize verifying if their applications use vulnerable versions and implement compensating controls to mitigate potential DoS attacks.

• Potential DoS attacks could impact application availability
• Verification of vulnerable versions is necessary to prevent exploitation
• Implementing compensating controls can mitigate the impact of DoS attacks
• Upgrade to version 9.0.7 or later to fix the vulnerability

Technical summary

The find-my-way framework, when used with Node's HTTP/2 server, is vulnerable to a remotely triggerable DoS attack. The issue arises from the lookup() function passing req.method into find(), which can resolve inherited object properties due to the use of a normal object for this.trees[method]. This causes the code to treat the resolved value like a router node and crash when it reaches currentNode.prefix.length.

Defensive priority

Defenders should prioritize verifying if their applications use vulnerable versions of find-my-way and upgrade to version 9.0.7 or later. They should also monitor for potential DoS attacks and implement compensating controls to mitigate the impact of such attacks.

Recommended defensive actions

• Verify if applications use vulnerable versions of find-my-way
• Upgrade to version 9.0.7 or later
• Monitor for potential DoS attacks
• Implement compensating controls to mitigate DoS impact
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and NVD vulnerability detail page provide information about the vulnerability, its impact, and the fixed version. However, there is limited information about potential exploits or attacks in the wild.

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.