CVE-2026-45819

Severity: medium (CVSS 6.6 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-13 · updated 2026-10-23
Weakness: CWE-705

Description

baseline-browser-mapping 2.x before 2.11.0 calls process.exit() instead of throwing on invalid or conflicting input parameters, and can trigger immediate process termination, causing denial of service.

Affected products

web-platform-dx baseline-browser-mapping: from 2.0.0 before 2.11.0 — fixed in 2.11.0

How to fix

Upgrade to a fixed version: web-platform-dx baseline-browser-mapping 2.11.0. Check the vendor advisory for mitigations.

References

https://github.com/web-platform-dx/baseline-browser-mapping/blob/b7881aa61c8a057e24468ab5ee18c5ecedbbf691/src/index.ts#L142
https://github.com/web-platform-dx/baseline-browser-mapping/pull/137/changes#diff-7ae45ad102eab3b6d7e7896acd08c427a9b25b346470d7bc6507b6481575d519
https://www.npmjs.com/package/baseline-browser-mapping

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