CVE-2026-21716: nodejs vulnerability
nodejs · node
Affected: nodejs · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 3% of scored CVEs
DescriptionCVE.org
An incomplete fix for CVE-2024-36137 leaves `FileHandle.chmod()` and `FileHandle.chown()` in the promises API without the required permission checks, while their callback-based equivalents (`fs.fchmod()`, `fs.fchown()`) were correctly patched. As a result, code running under `--permission` with restricted `--allow-fs-write` can still use promise-based `FileHandle` methods to modify file permissions and ownership on already-open file descriptors, bypassing the intended write restrictions. This vulnerability affects 20.x, 22.x, 24.x, and 25.x processes using the Permission Model where `--allow-fs-write` is intentionally restricted.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- nodejs · nodefrom 20.20.1 up to and including 20.20.1; from 22.22.1 up to and including 22.22.1; from 24.14.0 up to and including 24.14.0; from 25.8.1 up to and including 25.8.1
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- nodejs
- Published
- March 2026
- Bounty reports
- 1 disclosed on HackerOne
Disclosed bug bounty reports about CVE-2026-21716
The reports on HackerOne that name this CVE, with HackerOne's own outcome. Titles and metadata only.
- CVE-2024-36137 Patch Bypass - FileHandle.chmod/chownNode.js · 2026 · low severityValid
CoverageNo articles yet
No CyberSIXT article names CVE-2026-21716 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.