CVE catalog

CVE-2026-49356

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

[CVE catalog]

Severity: Low · CVSS 3.6CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Published: Jun 22, 2026, 4:07:01 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.15% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	node-babel7	sid	`8.0.9+ds1+~cs177.303.116-1`	fixed
Debian	node-babel7	forky	`8.0.4+ds1+~cs177.303.116-3`	fixed
Debian	node-babel7	trixie	`7.20.15+ds1+~cs214.269.168-8`	vulnerable
Debian	node-babel7	bookworm	`7.20.15+ds1+~cs214.269.168-3+deb12u2`	vulnerable
Debian	node-babel7	bookworm-security	`7.20.15+ds1+~cs214.269.168-3+deb12u1`	vulnerable
Cpe	node-babel7	Not reported	Not reported	vulnerable
Cpe	babel	Not reported	`7.29.6`	fixed
Cpe	babel	Not reported	Not reported	unknown
Ubuntu	babel	16.04	`1.4.0.dfsg-8.2`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	node-babel7	source	sid	`8.0.4+ds1+~cs177.303.116-2`	not yet assigned	Not reported	[1140816]
Debian	node-babel7	source	forky	`8.0.4+ds1+~cs177.303.116-2`	not yet assigned	Not reported	[1140816]
Debian	node-babel7	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1140816]
Debian	node-babel7	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1140816]
Cpe	babel	cpe	Not reported	`7.29.6`	Not reported	Not reported	Not reported

[Debian bug #1140816]

Notes

[trixie] node-babel7: Minor issue [bookworm] node-babel7: Minor issue; requires compiling attacker-controlled code, arbitrary file read into output source map

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[node-babel7]Affected
Details (4)
- 7.20.15+ds1+~cs214.269.168-3+deb12u2 · all · bookworm
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
- 7.20.15+ds1+~cs214.269.168-3+deb12u2 · all · bookworm
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
- 7.20.15+ds1+~cs214.269.168-3+deb12u1 · all · bookworm-security
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
- 7.20.15+ds1+~cs214.269.168-3+deb12u1 · all · bookworm-security
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
[node-babel7-debug]Affected
Source package: [node-babel7]
Details (4)
- 7.20.15+ds1+~cs214.269.168-3+deb12u2 · all · bookworm
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
- 7.20.15+ds1+~cs214.269.168-3+deb12u2 · all · bookworm
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
- 7.20.15+ds1+~cs214.269.168-3+deb12u1 · all · bookworm-security
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
- 7.20.15+ds1+~cs214.269.168-3+deb12u1 · all · bookworm-security
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
[node-babel7-runtime]Affected
Source package: [node-babel7]
Details (4)
- 7.20.15+ds1+~cs214.269.168-3+deb12u2 · all · bookworm
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
- 7.20.15+ds1+~cs214.269.168-3+deb12u2 · all · bookworm
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
- 7.20.15+ds1+~cs214.269.168-3+deb12u1 · all · bookworm-security
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
- 7.20.15+ds1+~cs214.269.168-3+deb12u1 · all · bookworm-security
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
[node-babel7-standalone]Affected
Source package: [node-babel7]
Details (4)
- 7.20.15+ds1+~cs214.269.168-3+deb12u2 · all · bookworm
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
- 7.20.15+ds1+~cs214.269.168-3+deb12u2 · all · bookworm
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
- 7.20.15+ds1+~cs214.269.168-3+deb12u1 · all · bookworm-security
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12
- 7.20.15+ds1+~cs214.269.168-3+deb12u1 · all · bookworm-security
  Affected
  nvd · node-babel7 · debian · bookworm; nvd · node-babel7 · debian · 12

[Debian 13 (Trixie)]

[node-babel7]Affected
Details (2)
- 7.20.15+ds1+~cs214.269.168-8 · all · trixie
  Affected
  nvd · node-babel7 · debian · 13
- 7.20.15+ds1+~cs214.269.168-8 · all · trixie
  Affected
  nvd · node-babel7 · debian · 13
[node-babel7-debug]Affected
Source package: [node-babel7]
Details (2)
- 7.20.15+ds1+~cs214.269.168-8 · all · trixie
  Affected
  nvd · node-babel7 · debian · 13
- 7.20.15+ds1+~cs214.269.168-8 · all · trixie
  Affected
  nvd · node-babel7 · debian · 13
[node-babel7-runtime]Affected
Source package: [node-babel7]
Details (2)
- 7.20.15+ds1+~cs214.269.168-8 · all · trixie
  Affected
  nvd · node-babel7 · debian · 13
- 7.20.15+ds1+~cs214.269.168-8 · all · trixie
  Affected
  nvd · node-babel7 · debian · 13
[node-babel7-standalone]Affected
Source package: [node-babel7]
Details (2)
- 7.20.15+ds1+~cs214.269.168-8 · all · trixie
  Affected
  nvd · node-babel7 · debian · 13
- 7.20.15+ds1+~cs214.269.168-8 · all · trixie
  Affected
  nvd · node-babel7 · debian · 13

Observed: Oct 23, 2026, 9:45:33 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]