CVE-2026-51859CWE-22path-traversal

CVE-2026-51859

Critical · published October 1, 2026

CVSS v3.1
9.1
EPSS
1%
Percentile
50.6
In the wild
Unconfirmed
What it is

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).

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00651 · 50.6th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-10-01T01:17Z
References (3)
https://gist.github.com/Ro1ME/df160925a60dd917550f7c87bfe62519 · [email protected]https://github.com/dataelement/bisheng/issues/1994 · [email protected]https://github.com/dataelement/bisheng/issues/1994 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 02 OCT 03:44Z
    EPSS moved — → 0%
    epss
  • 30 SEP 00:00Z
    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)
    cvelistv5