GO-2026-4918
Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net
At a glance
- Published
- Updated
- CVE
- CVE-2026-33814
- Aliases
- BIT-golang-2026-33814
Description
When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.
Affected packages
| Package | Versions |
|---|---|
| Go · golang.org/x/net | introduced 0, fixed 0.53.0 |
| Go · stdlib | introduced 0, fixed 1.25.10, introduced 1.26.0-0, fixed 1.26.3 |
References
- https://go.dev/cl/761581 FIX
- https://go.dev/cl/761640 FIX
- https://go.dev/issue/78476 REPORT
- https://groups.google.com/g/golang-announce/c/qcCIEXso47M WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — Go Vulnerability Database |