CVE-2026-49356
Severity CVSS v4.0:
Pending analysis
Type:
CWE-22
Path Traversal
Publication date:
22/06/2026
Last modified:
26/06/2026
Description
Babel is a compiler for writing next generation JavaScript. Prior to 8.0.0-rc.6 and 7.29.6, @babel/core affected by an arbitrary file read via a sourceMappingURL comment. Using @babel/core to compile maliciously crafted code can allow an attacker to read any source map from the system that is running Babel, if the attacker controls the input source code, can read the output source code, and knows the path of the source map file that they want to read. This vulnerability is fixed in 8.0.0-rc.6 and 7.29.6.
Impact
Base Score 3.x
3.20
Severity 3.x
LOW
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:babel:babel:*:*:*:*:*:*:*:* | 7.29.6 (excluding) | |
| cpe:2.3:a:babel:babel:8.0.0:alpha0:*:*:*:*:*:* | ||
| cpe:2.3:a:babel:babel:8.0.0:alpha1:*:*:*:*:*:* | ||
| cpe:2.3:a:babel:babel:8.0.0:alpha10:*:*:*:*:*:* | ||
| cpe:2.3:a:babel:babel:8.0.0:alpha11:*:*:*:*:*:* | ||
| cpe:2.3:a:babel:babel:8.0.0:alpha12:*:*:*:*:*:* | ||
| cpe:2.3:a:babel:babel:8.0.0:alpha13:*:*:*:*:*:* | ||
| cpe:2.3:a:babel:babel:8.0.0:alpha14:*:*:*:*:*:* | ||
| cpe:2.3:a:babel:babel:8.0.0:alpha15:*:*:*:*:*:* | ||
| cpe:2.3:a:babel:babel:8.0.0:alpha16:*:*:*:*:*:* | ||
| cpe:2.3:a:babel:babel:8.0.0:alpha17:*:*:*:*:*:* | ||
| cpe:2.3:a:babel:babel:8.0.0:alpha2:*:*:*:*:*:* | ||
| cpe:2.3:a:babel:babel:8.0.0:alpha3:*:*:*:*:*:* | ||
| cpe:2.3:a:babel:babel:8.0.0:alpha4:*:*:*:*:*:* | ||
| cpe:2.3:a:babel:babel:8.0.0:alpha5:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page