UBUNTU-CVE-2026-49356

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2026-49356
Published: 22 Jun 2026, 18:16
Last modified:29 Jun 2026, 13:56

Vulnerability Summary

Overall Risk (default)
low
14/100
CVSS Score
3.6 LOW
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

22 Jun 2026, 18:16
Published
Vulnerability first disclosed
29 Jun 2026, 13:56
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•LOW•Score: 3.6CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

Affected Systems

  • ubuntu•babel

    all

References (2)