CVE-2026-71476 nrwl CVE debrief

Who should care

Defenders responsible for maintaining and securing Nx installations, particularly those using self-hosted remote caches, should assess exposure and apply patches to prevent potential exploitation.

Why it matters

CVE-2026-71476 is a high-severity vulnerability in Nx self-hosted HTTP remote cache, potentially leading to remote code execution. Defenders should prioritize verifying the integrity of their Nx installations, reviewing their remote cache configurations, and applying patches to prevent potential exploitation.

• Remote code execution is possible if the self-hosted remote cache is compromised or if an attacker is on-path.
• Defenders need to verify the integrity of their Nx installations and review their remote cache configurations.
• Applying patches to affected versions is crucial to prevent exploitation.
• Compensating controls, such as monitoring for suspicious activity, should be implemented.

Technical summary

The vulnerability exists in the Nx self-hosted HTTP remote cache, allowing a malicious or on-path remote cache server to return a crafted tar archive that can write to arbitrary locations on the machine running Nx, potentially leading to remote code execution. The default local cache and Nx Cloud are not affected; only workspaces configured to use a self-hosted remote cache are affected. Defenders should prioritize verifying the integrity of their Nx installations, reviewing their remote cache configurations, and applying patches to prevent potential exploitation. This can be escalated to remote code execution.

Defensive priority

Defenders should prioritize verifying the integrity of their Nx installations, reviewing their remote cache configurations, and applying patches to prevent potential exploitation.

Recommended defensive actions

• Verify the integrity of Nx installations and review remote cache configurations.
• Apply patches to affected versions (prior to 22.7.7 and 23.0.2).
• Monitor for suspicious activity and implement compensating controls.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• 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 NVD vulnerability detail page provide information on the vulnerability, including its description, CVSS score, and affected versions. GitHub commits and pull requests also provide additional context on the fixes and patches.

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.