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CVE-2026-51859

9.1 CRITICALpublic exploit available

Published 2026-09-30 · Updated 2026-10-01

AI risk analysis

Summary
The flaw allows directory traversal, enabling attackers to access sensitive files. This matters because it can lead to data exposure and compromise.
Exploitability
Exploitation is moderate to hard, requiring knowledge of the exact directory path and potential access to the affected endpoint.
Blast radius
If exploited, the impact is limited to the local file system, potentially leading to data leakage but not affecting network availability or remote systems.
Detection
No reliable host or network indicator is derivable from the published description.
Prioritized remediation
Upgrade to bisheng 2.5.0 or later.
directory-traversaldata-leakageweb

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

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).

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

CWE-22

Public exploit & PoC references

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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