CVE-2017-18640: SnakeYAML Entity Expansion during load operation

CVE-2017-18640 · Severity: low · CVSS 3.1 · Published 2021-06-04

SnakeYAML Entity Expansion during load operation

Technologies: org.yaml:snakeyaml (Maven). Vendors: Maven.

Quick answers

Is CVE-2017-18640 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2017-18640 being exploited in the wild.
How severe is CVE-2017-18640?
Low severity, with a CVSS score of 3.1, published 4 June 2021.
Which products and versions are affected?
org.yaml:snakeyaml (Maven) ECOSYSTEM:introduced=0,fixed=1.26.
Is there a fix for CVE-2017-18640?
Yes. org.yaml:snakeyaml (Maven): upgrade to 1.26 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2017-18640?
Check whether you run org.yaml:snakeyaml (Maven) 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

  • org.yaml:snakeyaml (Maven): upgrade to 1.26 or later
    # set org.yaml:snakeyaml to 1.26 in your pom.xml or build.gradle

Affected products

  • org.yaml:snakeyaml (Maven) ECOSYSTEM:introduced=0,fixed=1.26

Identifiers

  • CVE-2017-18640
  • GHSA-rvwf-54qp-4r6v

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