Go net/http HTTP/2 Trailer Header DoS via Disproportional Memory Allocation (CVE-2026-78659)
Security Advisory
GO-2026-6603
High
Go
Affected:
- Go < go1.26.9
- Go go1.27.0.0 to go1.27.2
- golang.org/x/net/http2 < v0.60.0
Fixed in:
- go1.26.9
- go1.27.0.0
- v0.60.0
Referenced CVEs:
CVE-2026-78659
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