Chainguard Container for curl

Minimal curl image base containing curl and ca-certificates.

Chainguard Containers are regularly-updated, secure-by-default container images.

Download this Container Image

For those with access, this container image is available on cgr.dev:

docker pull cgr.dev/ORGANIZATION/curl:latest

Be sure to replace the ORGANIZATION placeholder with the name used for your organization's private repository within the Chainguard Registry.

Compatibility Notes

The Chainguard curl image is meant to serve as a drop-in replacement for the official curl image from Docker Hub. Like most other Chainguard Images, the cURL image has few-to-zero CVEs and does not run as the root user.

Getting Started

The Chainguard curl Image allows you to run ordinary curl commands in CI/CD pipelines as well as locally with Docker.

Be aware that you can always pull the latest version of the Image available, by downloading it from the public cgr.dev/chainguard/curl repository:

docker pull cgr.dev/chainguard/curl:latest

After downloading the image, you can run it the image with the --version flag to make sure the Image is functional:

docker run -it --rm cgr.dev/chainguard/curl --version

This will return output similar to the following:

curl 8.9.0 (x86_64-pc-linux-gnu) libcurl/8.9.0-DEV rustls-ffi/0.13.0/rustls/0.23.4 zlib/1.3.1 brotli/1.1.0 libpsl/0.21.5 nghttp2/1.62.1
Release-Date: 2024-07-24
Protocols: dict file ftp ftps gopher gophers http https imap imaps ipfs ipns mqtt pop3 pop3s rtsp smtp smtps telnet tftp
Features: alt-svc AsynchDNS brotli HSTS HTTP2 HTTPS-proxy IPv6 Largefile libz PSL SSL threadsafe UnixSockets

You can also run it as you would any other curl command. The following example runs curl on the URL cheat.sh/curl. cheat.sh is a site that hosts simplified documentation for a number of command-line utilities:

docker run -it --rm cgr.dev/chainguard/curl cheat.sh/curl

Documentation and Resources

• (Chainguard Academy) Vulnerability Comparison: curl
• (Blog post) Chainguard’s response to CVE-2023-38545 and CVE-2023-38546 in curl

What are Chainguard Containers?

Chainguard Containers are minimal container images that are secure by default.

In many cases, the Chainguard Containers tagged as :latest contain only an open-source application and its runtime dependencies. These minimal container images typically do not contain a shell or package manager. Chainguard Containers are built with Wolfi, our Linux undistro designed to produce container images that meet the requirements of a more secure software supply chain.

The main features of Chainguard Containers include:

• Minimal design, without unnecessary software bloat
• Daily builds to ensure container images are up-to-date with available security patches
• High quality build-time SBOMs attesting to the provenance of all artifacts within the image
• Verifiable signatures provided by Sigstore
• Reproducible builds with Cosign and apko (read more about reproducibility)

For cases where you need container images with shells and package managers to build or debug, most Chainguard Containers come paired with a -dev variant.

Although the -dev container image variants have similar security features as their more minimal versions, they feature additional software that is typically not necessary in production environments. We recommend using multi-stage builds to leverage the -dev variants, copying application artifacts into a final minimal container that offers a reduced attack surface that won’t allow package installations or logins.

Learn More

To better understand how to work with Chainguard Containers, please visit Chainguard Academy and Chainguard Courses.

In addition to Containers, Chainguard offers VMs and Libraries. Contact Chainguard to access additional products.

Trademarks

This software listing is packaged by Chainguard. The trademarks set forth in this offering are owned by their respective companies, and use of them does not imply any affiliation, sponsorship, or endorsement by such companies.