CVE-2026-129162
Dromara free-fs 2.0.1 through 2.3.1 Missing Authentication via File Stream Preview
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
Dromara free-fs 2.0.1 through 2.3.1 contains a missing authentication vulnerability in FileStreamController.preview that allows unauthenticated attackers to download stored files. Attackers who obtain a file ID from share listings or preview links can request /api/file/stream/preview/{fileId} to download any user's or workspace's files.
| CWE | CWE-306 |
| Vendor | dromara |
| Product | free-fs |
| Published | Nov 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
dromara / free-fs
2.0.1 ≤ 2.3.1
References
vul.yulun.ac.cn: https://vul.yulun.ac.cn/20261024/free-fs/ github.com: https://github.com/dromara/free-fs/issues/28 github.com: https://github.com/dromara/free-fs/blob/f8f4ff2a0b0af8fcd5cbecbf99a4afb7d0b7c020/fs-modules/fs-file/src/main/java/com/xddcodec/fs/file/controller/FileStreamController.java#L52-L77 github.com: https://github.com/dromara/free-fs/blob/f8f4ff2a0b0af8fcd5cbecbf99a4afb7d0b7c020/fs-admin/src/main/java/com/xddcodec/fs/web/WebMvcConfig.java#L50-L84 vulncheck.com: https://www.vulncheck.com/advisories/dromara-free-fs-2.0.1-through-2.3.1-missing-authentication-via-file-stream-preview
Credits
Wu Yulun