VYPR
Low severity3.2GHSA Advisory· Published Jun 22, 2026· Updated Jun 26, 2026

CVE-2026-49356

CVE-2026-49356

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
@babel/corenpm
>= 8.0.0-alpha.0, < 8.0.0-rc.68.0.0-rc.6
@babel/corenpm
< 7.29.67.29.6

Affected products

82

Patches

Vulnerability mechanics

References

4

News mentions

0

No linked articles in our index yet.