CVE-2026-21716
3.3
LOW
CVSS 3.1
EPSS 0.16%
描述
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.
如何修補 CVE-2026-21716
要修補 CVE-2026-21716,請將受影響套件升級到下列已修補版本。
- —升級至 22.22.2-r0 或更新版本
- —升級至 20.20.2 或更新版本
- —升級至 20.20.2 或更新版本
- —升級至 20.19.2+dfsg-1+deb13u2 或更新版本
CVE-2026-21716 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(4)
- from 0, < 22.22.2-r0
- from 0, < 20.20.2, >= 21.0.0, < 22.22.2, >= 23.0.0, < 24.14.1, >= 25.0.0, < 25.8.2
- from 0, < 20.20.2, >= 21.0.0, < 22.22.2, >= 23.0.0, < 24.14.1, >= 25.0.0, < 25.8.2
- from 0, < 20.19.2+dfsg-1+deb13u2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.3 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |