DEBIAN-CVE-2026-21715

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2026-21715
Downstream
DSA-6183-1
Published: 30 Mar 2026, 20:16
Last modified:15 Jun 2026, 19:06

Vulnerability Summary

Overall Risk (default)
low
13/100
CVSS Score
3.3 LOW
3.0 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

30 Mar 2026, 20:16
Published
Vulnerability first disclosed
15 Jun 2026, 19:06
Last Modified
Vulnerability information updated

Description

A flaw in Node.js Permission Model filesystem enforcement leaves `fs.realpathSync.native()` without the required read permission checks, while all comparable filesystem functions correctly enforce them. As a result, code running under `--permission` with restricted `--allow-fs-read` can still use `fs.realpathSync.native()` to check file existence, resolve symlink targets, and enumerate filesystem paths outside of permitted directories. This vulnerability affects **20.x, 22.x, 24.x, and 25.x** processes using the Permission Model where `--allow-fs-read` is intentionally restricted.

CVSS Metrics

  • v3.0•LOW•Score: 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected Systems

  • debian•nodejs

    all | all | all | all | < 20.19.2+dfsg-1+deb13u2 | < 22.22.2+dfsg+~cs22.19.15-1

References (1)