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CVE-2026-49356

LOW
3.2
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-49356
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-05-29 14:35 UTC
Published
2026-06-22 16:07 UTC
Last updated
2026-06-22 17:23 UTC
Primary CWE
CWE-22
CWE-22: Improper Limitation of a Pathname to a Restricted Di…
Vendor / Product
babel / babel
Sources
cve.org  ·  NVD

Severity & Metrics

3.2 LOW CVSS 3.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
babel babel — >= 8.0.0-alpha.0, < 8.0.0-rc.5, < 7.29.6
Weakness (CWE)
CWESourceDescription
CWE-200 cna CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-22 cna CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSS scores (1)
ScoreSeverityVersionSourceVector
3.2 LOW 3.1 cna CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
References (1)
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