zizmor

🌈 zizmor zizmor is a static analysis tool for CI/CD systems. It can find and fix security issues in common CI/CD setups, including GitHub Actions, Dependabot, and pre-commit. Some of the things zizmor finds: Template injection vulnerabilities, leading to attacker-controlled code execution...

async-http-client-check

async-http-client-check Offline checker for the 26 repository-level security advisories oforg.asynchttpclient:async-http-client AsyncHttpClient, "AHC". It tells you which ones your jar is actually exposed to, flags the ones Dependabot and OSV cannot see , and gives one answer per line: 3.x →3.0.1...

An Exploratory Study of Dependabot Cooldown Adoption in Open-Source GitHub Projects

Automated dependency updates can rapidly propagate malicious package releases before maintainers and the broader community have enough time to detect them. In July 2025, GitHub made Dependabot cooldown generally available as a defense against software supply chain attacks. However, the effects of...

How we took malware advisories beyond npm

A compromised package can steal credentials the moment you install it, and until recently, GitHub could only flag those in npm. Not anymore. This is the story of how the supply chain engineering team behind Dependabot expanded malware advisories to eight ecosystems by building on OpenSSF's shared...

Tame Dependabot: Group your updates, slow the cadence, keep security fast

If you maintain an active repository, you know the feeling. You open your notifications on a Monday morning and there they are: five, 10, sometimes a dozen Dependabot pull requests, each bumping a single dependency by a single patch version. Individually, every one of them is helpful. Collectivel...

GitHub Adds 3-Day Dependabot Cooldown to Limit Poisoned Package Adoption

GitHub has announced a new cooldown mechanism in Dependabot, allowing the tool to wait at least three days after a release is published before opening a pull request. "The cooldown configuration option in the dependabot.yml still controls the behavior, though, so you can choose a different cooldo...

The case for a cooldown: Why Dependabot now waits before issuing version updates

In September 2025, an attacker phished the credentials of a single npm maintainer and published booby-trapped versions of chalk, debug, and around a dozen other packages that are together downloaded more than 2 billion times a week. The code rewrote cryptocurrency wallet addresses inside any...

CVE-2026-15343

A path traversal vulnerability was identified in GitHub Enterprise Server that allowed an attacker who had code execution inside the Dependabot updater container to write files to arbitrary repository paths, including GitHub Actions workflow files under .github/workflows/ as the path validation d...

CVE-2026-15343

GitHub Enterprise Server (Dependabot updater container) contains a path traversal vulnerability that lets an attacker with code execution inside that container write to arbitrary repository paths, including .github/workflows/. The flaw arises because path validation did not properly enforce the e...

EUVD-2026-45189

A path traversal vulnerability was identified in GitHub Enterprise Server that allowed an attacker who had code execution inside the Dependabot updater container to write files to arbitrary repository paths, including GitHub Actions workflow files under .github/workflows/ as the path validation d...

CVE-2026-15343

A path traversal vulnerability was identified in GitHub Enterprise Server that allowed an attacker who had code execution inside the Dependabot updater container to write files to arbitrary repository paths, including GitHub Actions workflow files under .github/workflows/ as the path validation d...

CVE-2026-15343 Path traversal vulnerability in GitHub Enterprise Server allowed writing files to arbitrary repository paths, including GitHub Actions workflow files, via unchecked Dependabot dependency-file paths

A path traversal vulnerability was identified in GitHub Enterprise Server that allowed an attacker who had code execution inside the Dependabot updater container to write files to arbitrary repository paths, including GitHub Actions workflow files under .github/workflows/ as the path validation d...

CVE-2026-15343 Path traversal vulnerability in GitHub Enterprise Server allowed writing files to arbitrary repository paths, including GitHub Actions workflow files, via unchecked Dependabot dependency-file paths

A path traversal vulnerability was identified in GitHub Enterprise Server that allowed an attacker who had code execution inside the Dependabot updater container to write files to arbitrary repository paths, including GitHub Actions workflow files under .github/workflows/ as the path validation d...

PT-2026-60782

A path traversal vulnerability was identified in GitHub Enterprise Server that allowed an attacker who had code execution inside the Dependabot updater container to write files to arbitrary repository paths, including GitHub Actions workflow files under .github/workflows/ as the path validation d...

CVE-2026-15343: Improper Limitation of a Pathname to a Restricted Directory

A path traversal vulnerability was identified in GitHub Enterprise Server that allowed an attacker who had code execution inside the Dependabot updater container to write files to arbitrary repository paths, including GitHub Actions workflow files under .github/workflows/ as the path validation d...

Malicious code in leo-sdk (npm)

The leo-sdk npm package was compromised as part of the Miasma worm campaign targeting the LeoPlatform npm ecosystem. On June 24, 2026, 20 LeoPlatform packages were published within a 3-second window by a threat actor who had taken over the npm account czirker belonging to the LeoPlatform...

Malicious code in leo-streams (npm)

The leo-streams npm package was compromised as part of the Miasma worm campaign targeting the LeoPlatform npm ecosystem. On June 24, 2026, 20 LeoPlatform packages were published within a 3-second window by a threat actor who had taken over the npm account czirker belonging to the LeoPlatform...

Malicious code in leo-connector-mongo (npm)

The leo-connector-mongo npm package was compromised as part of the Miasma worm campaign targeting the LeoPlatform npm ecosystem. On June 24, 2026, 20 LeoPlatform packages were published within a 3-second window by a threat actor who had taken over the npm account czirker belonging to the...

Malicious code in serverless-convention (npm)

The serverless-convention npm package was compromised as part of the Miasma worm campaign targeting the LeoPlatform npm ecosystem. On June 24, 2026, 20 LeoPlatform packages were published within a 3-second window by a threat actor who had taken over the npm account czirker belonging to the...

Malicious code in rstreams-shard-util (npm)

The rstreams-shard-util npm package was compromised as part of the Miasma worm campaign targeting the LeoPlatform npm ecosystem. On June 24, 2026, 20 LeoPlatform packages were published within a 3-second window by a threat actor who had taken over the npm account czirker belonging to the...