CVE-2020-26222: Dependabot is a set of packages for automated dependency management for Ruby, JavaScript, Python, PHP, Elixir,

This month

HIGH 8.7UPGRADE

CVE-2020-26222 is a high-severity flaw (CVSS 8.7) affecting dependabot. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Dependabot is a set of packages for automated dependency management for Ruby, JavaScript, Python, PHP, Elixir, Rust, Java, .NET, Elm and Go. In Dependabot-Core from version 0.119.0.beta1 before version 0.125.1, there is a remote code execution vulnerability in dependabot-common and dependabot-go_modules when a source branch name contains malicious injectable bash code. For example, if Dependabot is configured to use the following source branch na

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.7 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	3.1% (top 12%)
CISA exploited list	No
Weakness	CWE-74
Published	2020-11-13
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: dependabot project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-11-13 16:15 UTCPublished CVE record published
2026-06-17 03:07 UTCUpdated Record last modified

dependabot project dependabot UPGRADE

Affected: >= 0.119.1 and < 0.125.1 · 0.119.0 · 0.119.0 beta1

Fixed in: 0.125.1

Safe to downgrade to: a release before 0.119.0

1. Check installed version

apt-cache policy dependabot || rpm -q dependabot || dependabot --version

2. UPGRADE to 0.125.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade dependabot

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade dependabot

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 0.119.0 (Debian / Ubuntu)

apt-cache madison dependabot sudo apt install dependabot=<VERSION_BEFORE_0.119.0> sudo apt-mark hold dependabot

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list dependabot sudo dnf downgrade dependabot-<VERSION_BEFORE_0.119.0> sudo dnf versionlock add dependabot

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-26222?

dependabot: upgrade to 0.125.1. Exact commands for each OS are on this page.

Is CVE-2020-26222 being exploited?

CVE-2020-26222 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-26222 affect?

CVE-2020-26222 affects dependabot. Severity is high (CVSS 8.7). Dependabot is a set of packages for automated dependency management for Ruby, JavaScript, Python, PHP, Elixir, Rust, Java, .NET, Elm and Go. In Dependabot-Core from version 0.119.0.beta1 before version 0.125.1, there is a remote code execut

How urgent is CVE-2020-26222?

Priority 57/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities · Python vulnerabilities · Java vulnerabilities · Ruby vulnerabilities

References

← Back to latest CVEs