runc

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• Medium 6.5
  CVE-2026-27145 Public exploit

  Inefficient candidate hostname parsing in crypto/x509

  (*x509.Certificate).VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name (SAN) entries. This caused strings.Split(host, ".") to execute repeatedly on the same input hostname. With a large DNS SAN list, verification c…

  Go standard library crypto/x509 golang stdlib Debian Ubuntu Azure Linux Wolfi Go
  Jun 2, 2026
• Medium 4.4
  CVE-2025-22870 Public exploit

  HTTP Proxy bypass using IPv6 Zone IDs in golang.org/x/net

  Matching of hosts against proxy patterns can improperly treat an IPv6 zone ID as a hostname component. For example, when the NO_PROXY environment variable is set to "*.example.com", a request to "[::1%25.example.com]:80` will incorrectly match and not be prox…

  Go standard library golang.org/x/net net/http golang.org/x/net/http/httpproxy Debian Ubuntu Azure Linux Alpine Wolfi Go
  Mar 12, 2025
• Medium 6.4
  CVE-2024-24787 Public exploit

  Arbitrary code execution during build on Darwin in cmd/go

  On Darwin, building a Go module which contains CGO can trigger arbitrary code execution when using the Apple version of ld, due to usage of the -lto_library flag in a "#cgo LDFLAGS" directive.

  Go toolchain cmd/go katib-suggestion-hyperopt katib-earlystopping Azure Linux Wolfi Go
  May 8, 2024
• High 7.5
  CVE-2023-45288 Public exploit EPSS 89%

  HTTP/2 CONTINUATION flood in net/http

  An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a reques…

  Go standard library golang.org/x/net net/http golang.org/x/net/http2 Debian Ubuntu Azure Linux Alpine Wolfi Go
  Apr 4, 2024
• High 8.6
  CVE-2024-21626 Public exploit EPSS 19%

  runc container breakout through process.cwd trickery and leaked fds

  runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc 1.1.11 and earlier, due to an internal file descriptor leak, an attacker could cause a newly-spawned container process (from runc exec) to have a worki…

  opencontainers runc zot kubescape Debian Ubuntu Azure Linux Alpine Wolfi Go
  Jan 31, 2024
• High 7.5
  CVE-2023-39325 Public exploit

  HTTP/2 rapid reset can cause excessive work in net/http

  A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress requ…

  Go standard library golang.org/x/net net/http golang.org/x/net/http2 Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 11, 2023