opennextjs-cloudflare has SSRF vulnerability via /cdn-cgi/ path normalization bypass

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0097, the 61st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 5 Mar 2026. New records show when each source confirmed them.

Sources

• GitHub Advisory Database: GHSA-c7mq-gh6q-6q7c
• OSV: GHSA-c7mq-gh6q-6q7c
• github.com/opennextjs/opennextjs-cloudflare/security/advisories/GHSA-c7mq-gh6q-6q7c
• nvd.nist.gov/vuln/detail/CVE-2026-3125
• github.com/opennextjs/opennextjs-cloudflare/pull/1147
• github.com/opennextjs/opennextjs-cloudflare/commit/f5bd138fd3c77e02f2aa4b9c76d55681e59e98b4
• github.com/advisories/GHSA-rvpw-p7vw-wj3m
• github.com/opennextjs/opennextjs-cloudflare
• www.cve.org/cverecord?id=CVE-2025-6087
• www.npmjs.com/package/@opennextjs/cloudflare/v/1.17.1

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.