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VulnerabilityPublished Updated

webpack-dev-server (RubyGems) · Malicious Code

Affects webpack-dev-serverSource GCVE Database

0
Severity
High

Rated by Threat Radar

Data as of 18 Jul 2026, 21:00 UTC

What to do

Affected software

ProductAffectedFixed in
RubyGemswebpack-dev-serverpkg:gem/webpack-dev-serverOther threatsAffected
  • =9.9.0
  • =9.9.1
  • =9.9.8
  • =9.9.9
  • =9.1.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until then, avoid using the affected versions (=9.1.0, =9.9.0, =9.9.1, =9.9.8, =9.9.9) of webpack-dev-server. Consider using versions not listed as affected or obtaining the package from trusted sources. Monitor official advisories for updates on fixes or mitigations.

Description

Malicious code was identified in specific versions of the webpack-dev-server package distributed via RubyGems. The affected versions include 9.1.0, 9.9.0, 9.9.1, 9.9.8, and 9.9.9. This issue is classified as a malicious package threat rather than a traditional vulnerability. There is no CVSS score available, and no known exploits in the wild have been reported. No official patch or remediation guidance is provided in the available data.

References

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