Vulnerability · Published Aug 13, 2026 · Assigned by seal
CVE-2026-45819
Medium 6.6
In plain English
A medium-severity security flaw in baseline-browser-mapping from web-platform-dx. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)6.6Medium
Exploit odds (30 days)0.5%top 56.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | baseline-browser-mapping | 2.11.0 | GHSA-w5vr-8v7q-w6rv |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| web-platform-dx | baseline-browser-mapping | 2.0.0 – before 2.11.0 |
Weakness: CWE-705, CWE-755 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber