CVE-2026-40256
Weblate: Prefix-Based Repository Boundary Check Bypass via Symlink/Junction Path Prefix Collision
5.0
MEDIUM
CVSS 3.1
EPSS 0.32%
描述
### Impact Weblate repository-boundary validation relies on string prefix checks on resolved absolute paths. In multiple code paths, the check uses startswith against the repository root path. This is not path-segment aware and can be bypassed when the external path shares the same string prefix as the repository path (for example, repo and repo_outside). ### Patches * https://github.com/WeblateOrg/weblate/pull/18847 ### References Thanks to [m9nx4u](https://hackerone.com/m9nx4u) for reporting this issue via HackerOne.
如何修補 CVE-2026-40256
要修補 CVE-2026-40256,請將受影響套件升級到下列已修補版本。
- —升級至 5.17 或更新版本
- —升級至 5.17 或更新版本
CVE-2026-40256 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 5.17
- from 0, < 5.17
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N |