Files
cli/dockerfiles/Dockerfile.lint
T
Sebastiaan van Stijn 6d245daa91 update to go1.26.5
go1.26.5 (released 2026-07-07) includes security fixes to the crypto/tls
and os packages, as well as bug fixes to the compiler, the runtime, the
go command, and the net, os, and syscall packages. See the Go 1.26.5
milestone on our issue tracker for details;

- https://github.com/golang/go/issues?q=milestone%3AGo1.26.5+label%3ACherryPickApproved
- full diff: https://github.com/golang/go/compare/go1.26.4...go1.26.5

From the security announcement:

We have just released Go versions 1.26.5 and 1.25.12, minor point releases.

These releases include 2 security fixes following the security policy:

- os: Root escape via symlink plus trailing slash

  On Unix systems, opening a file in an os.Root improperly
  followed symlinks to locations outside of the Root when
  the final path component of the a path is a symbolic link
  and the path ends in /.

  For example, root.Open("symlink/") would open "symlink"
  even when "symlink" is a symbolic link pointing outside of the root.

  On Unix, openat(fd, path, O_NOFOLLOW) will follow symlinks
  in path when path ends in a /. Root failed to account for
  this behavior, permitting paths with a trailing / to escape.
  It now properly sanitizes the path parameter provided to openat.

  hanks to Mundur for reporting this issue.

  This is CVE-2026-39822 and Go issue https://go.dev/issue/79005.

- crypto/tls: Encrypted Client Hello privacy leak

  he Encrypted Client Hello implementation would leak the pre-shared key
  dentities during the handshake, allowing a passive network observer who can
  ollect handshakes to de-anonymize the hostname of the server, even when ECH was
  eing used.

  Thanks to Coia Prant (github.com/rbqvq) for reporting this issue.

  This is CVE-2026-42505 and Go issue https://go.dev/issue/79282.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2026-07-08 00:01:42 +02:00

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Docker

# syntax=docker/dockerfile:1
ARG GO_VERSION=1.26.5
# ALPINE_VERSION sets the version of the alpine base image to use, including for the golang image.
# It must be a supported tag in the docker.io/library/alpine image repository
# that's also available as alpine image variant for the Golang version used.
ARG ALPINE_VERSION=3.23
# GOLANGCI_LINT_VERSION sets the version of the golangci/golangci-lint image to use.
ARG GOLANGCI_LINT_VERSION=v2.10.1
FROM golangci/golangci-lint:${GOLANGCI_LINT_VERSION}-alpine AS golangci-lint
FROM golang:${GO_VERSION}-alpine${ALPINE_VERSION} AS lint
ENV GOTOOLCHAIN=local
ENV GO111MODULE=auto
ENV CGO_ENABLED=0
ENV GOGC=75
WORKDIR /go/src/github.com/docker/cli
COPY --link --from=golangci-lint /usr/bin/golangci-lint /usr/bin/golangci-lint
RUN --mount=type=bind,target=.,rw \
--mount=type=cache,target=/root/.cache \
rm -f go.mod go.sum && \
ln -s vendor.mod go.mod && \
ln -s vendor.sum go.sum && \
golangci-lint run