CVE-2026-49356
Vulnerability Summary
Timeline
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: 3.2CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
- v3.1•LOW•Score: 3.6CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
EPSS Trends
Current EPSS score: 0.13%• Percentile: 3%
Techniques & Countermeasures
- CWE-22•Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
- CWE-200•Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Affected Systems
- chainguard•airflow-2
all
- chainguard•airflow-3
< 3.2.2-r8
- chainguard•airflow-core-2
all
- chainguard•arangodb-3.11
all
- chainguard•arangodb-3.12
all | < 3.12.11-r0
- chainguard•argo-workflows-ui-3.6
< 3.6.19-r7
- chainguard•authentik-2025.12
all
- chainguard•authentik-2026.2
< 2026.2.6-r11
- chainguard•authentik-2026.5
< 2026.5.4-r1
- chainguard•authentik-fips-2025.12
all
- chainguard•authentik-fips-2026.2
< 2026.2.6-r12
- chainguard•authentik-fips-2026.5
< 2026.5.4-r1
- chainguard•commercial-gitlab-rails-ee-19.1
all
- chainguard•commercial-gitlab-rails-ee-19.2
all
- chainguard•commercial-gitlab-rails-ee-19.3
all
- chainguard•commercial-gitlab-rails-ee-fips-19.1
all
- chainguard•commercial-gitlab-rails-ee-fips-19.2
all
- chainguard•commercial-gitlab-rails-ee-fips-19.3
all
- chainguard•gitlab-rails-ce-18.1
all
- chainguard•gitlab-rails-ce-18.10
all
- chainguard•gitlab-rails-ce-18.11
all
- chainguard•gitlab-rails-ce-18.5
all
- chainguard•gitlab-rails-ce-18.6
all
- chainguard•gitlab-rails-ce-18.7
all
- chainguard•gitlab-rails-ce-18.8
all
- chainguard•gitlab-rails-ce-18.9
all
- chainguard•gitlab-rails-ce-19.0
all | < 19.0.3-r1
- chainguard•gitlab-rails-ce-19.1
all | < 19.1.7-r6 | < 19.1.8-r3
- chainguard•gitlab-rails-ce-19.2
< 19.2.5-r2 | < 19.2.5-r3 | all
- chainguard•gitlab-rails-ce-19.3
all | < 19.3.1-r6 | < 19.3.1-r11
- chainguard•gitlab-rails-ce-fips-18.1
< 18.1.6-r15 | all
- chainguard•gitlab-rails-ce-fips-18.10
all
- chainguard•gitlab-rails-ce-fips-18.11
all
- chainguard•gitlab-rails-ce-fips-18.5
all
- chainguard•gitlab-rails-ce-fips-18.6
all
- chainguard•gitlab-rails-ce-fips-18.7
all
- chainguard•gitlab-rails-ce-fips-18.8
all
- chainguard•gitlab-rails-ce-fips-18.9
all
- chainguard•gitlab-rails-ce-fips-19.0
all
- chainguard•gitlab-rails-ce-fips-19.1
< 19.1.1-r1 | all | < 19.1.7-r8
- chainguard•gitlab-rails-ce-fips-19.2
all | < 19.2.6-r3
- chainguard•gitlab-rails-ce-fips-19.3
all | < 19.3.1-r6
- chainguard•katib-earlystopping
< 0.19.0-r31
- chainguard•katib-suggestion-goptuna-compat
< 0.19.0-r40
- chainguard•katib-suggestion-hyperband
< 0.19.0-r31
- chainguard•katib-suggestion-hyperopt
< 0.19.0-r31 | < 0.19.0-r40
- chainguard•katib-suggestion-nas-darts
< 0.19.0-r31
- chainguard•katib-suggestion-nas-enas
< 0.19.0-r31
- chainguard•katib-suggestion-optuna-enas
< 0.19.0-r31
- chainguard•katib-suggestion-pbt-enas
< 0.19.0-r31
Showing first 50 affected entries in server-rendered view.
References (6)
- https://github.com/babel/babel/security/advisories/GHSA-4x5r-pxfx-6jf8
- https://babeljs.io/docs/options#inputsourcemap
- https://github.com/babel/babel
- https://nvd.nist.gov/vuln/detail/CVE-2026-49356
- https://security-tracker.debian.org/tracker/CVE-2026-49356
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49356.json