etcd

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• Critical 9.1
  CVE-2026-78663

  Double flow control refund on HTTP/2 server streams in net/http

  The HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream (refunding data for any sent-but-unread portion of the stream), and again when a request handler reads the buffered data. A malicious client…

  Go standard library golang.org/x/net net/http golang.org/x/net/http2 Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• Critical 9.8
  CVE-2026-37236

  grpc-gateway v2.28.0 is vulnerable to Incorrect Access Control. The application processes the X-HTTP-Method-Override he…

  telegraf cri-o kubernetes moby-engine Debian Ubuntu Azure Linux
  Aug 28, 2026
• Critical 9.6
  CVE-2026-39821

  Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/net/idna

  The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label. For example, ToUnicode("xn--example-.com") incorrectly returns the name "example.com" rather than an error. This behavior can lead to privilege …

  Go standard library golang.org/x/net net/http net/http/internal/http2 Debian Ubuntu Azure Linux Alpine Wolfi Go
  May 22, 2026
• Critical 9.8
  CVE-2021-28235 Public exploit

  Etcd-io Improper Authentication vulnerability

  Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the debug function.

  etcd etcd etcd go.etcd.io/etcd/v3 Debian Ubuntu Azure Linux Go
  Apr 4, 2023