CVE-2021-29472: Composer's missing argument delimiter can lead to code execution via VCS repository URLs or source download URLs on…

CVE-2021-29472 · Severity: low · CVSS 3.1 · Published 2021-04-29

Composer's missing argument delimiter can lead to code execution via VCS repository URLs or source download URLs on systems with Mercurial

Technologies: composer/composer (Packagist). Vendors: Packagist.

Quick answers

Is CVE-2021-29472 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-29472 being exploited in the wild.
How severe is CVE-2021-29472?
Low severity, with a CVSS score of 3.1, published 29 April 2021.
Which products and versions are affected?
composer/composer (Packagist) ECOSYSTEM:introduced=0,fixed=1.10.22.
Is there a fix for CVE-2021-29472?
Yes. composer/composer (Packagist): upgrade to 1.10.22 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2021-29472?
Check whether you run composer/composer (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • composer/composer (Packagist): upgrade to 1.10.22 or later
    composer require composer/composer:^1.10.22

Affected products

  • composer/composer (Packagist) ECOSYSTEM:introduced=0,fixed=1.10.22

Identifiers

  • CVE-2021-29472
  • GHSA-h5h8-pc6h-jvvx

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