PatchTheCVEnghttp2 vulnerabilities and fixes
Recent CVEs affecting nghttp2, with upgrade or downgrade steps. 1 tracked.
nghttp2 has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-06-28. Highest priority: CVE-2026-58055 (score 28/100).
- CVE-2026-58055 MEDIUM 5.4 UPGRADE nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade request that also carries a Content-Length
FAQ
How do I fix nghttp2 vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is nghttp2 being exploited right now?
None of the tracked nghttp2 CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which nghttp2 CVE should I patch first?
CVE-2026-58055 currently ranks highest (28/100): nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade request that also carries a Content-Length.