bisheng 2.3.0, 2.4.0, and 2.4.0-beta1 is vulnerable to directory traversal in save_download_file (src/backend/bisheng/core/cache/utils.py:290).
Critical 9.1
CVE-2026-51859
bisheng 2.3.0, 2.4.0, and 2.4.0-beta1 is vulnerable to directory traversal in save_download_file…
WeaknessCWE-22: Path traversal
Published Updated Source NVD
CVSS 3.1
9.1
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Exploit chance, 30 days
0.8%
Higher than 55% of all CVEs (EPSS)
Status
No known exploitation
Not in CISA KEV
Patch
Unknown
Check the vendor advisory
What happened
What to do
- 01Check whether the affected product runs anywhere in your estate.
- 02Follow the vendor advisory for a fix or a workaround.
References
Timeline · UTC
- Published to NVD
- NVD record updated
Also actively exploited