SB2026100114 - Incorrect Control Flow Scoping in baseline-browser-mapping
Published: October 1, 2026
Security Bulletin ID
SB2026100114
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Incorrect Control Flow Scoping (CVE-ID: CVE-2026-45819)
CWE-ID: CWE-705 - Incorrect Control Flow Scoping
CVSSv4: 8.7 [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]
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to baseline-browser-mapping calls process.exit() instead of throwing on invalid or conflicting input parameters, and can trigger immediate process termination. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
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