OCTOBER 6, 2026
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Case File

CVE-2026-51859

CRITICAL · CVSS 9.1 EPSS 0.65% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-30 · Last synced 2026-10-06

CyberRota Analysis

AI-Generated

Bisheng versions 2.3.0, 2.4.0, and 2.4.0-beta1 are susceptible to a directory traversal vulnerability in the save_download_file function, allowing attackers to potentially access sensitive files outside the intended directory. This could lead to unauthorized data exposure or manipulation. Organizations using these specific versions should prioritize patching to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
gist.github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-51859
Severity
CRITICAL
CVSS
9.1
EPSS
0.65%

Original NVD Description

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).