CVE-2026-49356: Babel: Arbitrary File Read via sourceMappingURL Comment in @babel/core

Overview

Severity

Low (CVSS 3.2)

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N

Exploit Status

Not Exploited

Patch Tuesday

2026-Jun

Released

2026-06-27

EPSS Score

0.12% (percentile: 1.9%)

Affected Products (1)

Other

• 21466-17084

Revision History

• 2026-06-27: Information published.