GHSA-8jf4-fcjr-68c2
Upsonic is vulnerable to Path Traversal attack through its os.path.join function
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
A vulnerability classified as critical was found in Upsonic up to 0.55.6. This vulnerability affects the function os.path.join of the file markdown/server.py. The manipulation of the argument file.filename leads to path traversal. The exploit has been disclosed to the public and may be used.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2025-6278
- https://github.com/Upsonic/Upsonic/issues/356
- https://github.com/Upsonic/Upsonic/pull/360
- https://github.com/Upsonic/Upsonic/commit/a54529acc6e4bfe28f4f5c80c058144348a306b7
- https://github.com/Upsonic/Upsonic
- https://github.com/Upsonic/Upsonic/blob/v0.55.6/src/upsonic/server/markdown/server/server.py#L39
- https://github.com/pypa/advisory-database/tree/main/vulns/upsonic/PYSEC-2025-67.yaml
- https://vuldb.com/?ctiid.313282
- https://vuldb.com/?id.313282
- https://vuldb.com/?submit.593096