Description (CNA)
Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing. However, this makes it possible for our HTTP/2 implementation to forward responses containing such headers to an HTTP/1 client when acting as a reverse proxy. If the HTTP/1 client also does not behave strictly enough, this can result in response smuggling.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Go standard library / net/http | affected 0 before 1.26.9 |
| Go standard library / net/http/internal/http2 | affected 1.27.0-0 before 1.27.2 |
| golang.org/x/net / golang.org/x/net/http2 | affected 0 before 0.60.0 |
CWE
No CWE identifiers supplied.
References
- https://go.dev/cl/835145
- https://go.dev/cl/836385
- https://go.dev/issue/81115
- https://groups.google.com/g/golang-announce/c/U2fTuyDJznI
- https://pkg.go.dev/vuln/GO-2026-6610
ADP enrichment
No English description supplied.
No references supplied.