CVE Explorer
CVE-2026-21716
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.
T
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"node","vendor":"nodejs","versions":[{"lessThanOrEqual":"20.20.1","status":"affected","version":"20.20.1","versionType":"semver"},{"lessThanOrEqual":"22.22.1","status":"affected","version":"22.22.1","versionType":"semver"},{"lessThanOrEqual":"24.14.0","status":"affected","version":"24.14.0","versionType":"semver"},{"lessThanOrEqual":"25.8.1","status":"affected","version":"25.8.1","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:04f11ae64b5b411931be36a0a500622b052c6e75b47539055cdcb5077ff3434e · sha256:2e7b2d9e8ed190be… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":3.3,"baseSeverity":"LOW","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.0"},"metric_type":"cvssV3_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:04f11ae64b5b411931be36a0a500622b052c6e75b47539055cdcb5077ff3434e · sha256:2e7b2d9e8ed190be… · /containers/cna/metrics/0/cvssV3_0
CWE assertions
1 source assertion{"cweId":"CWE-862","description":"CWE-862 Missing Authorization","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:04f11ae64b5b411931be36a0a500622b052c6e75b47539055cdcb5077ff3434e · sha256:2e7b2d9e8ed190be… · /containers/adp/0/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://nodejs.org/en/blog/vulnerability/march-2026-security-releases"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:04f11ae64b5b411931be36a0a500622b052c6e75b47539055cdcb5077ff3434e · sha256:2e7b2d9e8ed190be… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.