CVE-2026-51859

Published Sep 30, 2026 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Directory Traversal in bisheng Cache Utility Exposes Unauthorized File Access
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Dataelement
Dataelement bisheng
Vendors & Products Dataelement
Dataelement bisheng
Type Values Removed Values Added
Title Directory Traversal in bisheng Cache Utility Exposes Unauthorized File Access
Weaknesses CWE-22
Type Values Removed Values Added
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).
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 1, 2026, 6:48 PM
Reserved
Jun 8, 2026, 12:00 AM
Status
Deferred
Published
Sep 30, 2026, 9:17 PM
Modified
Oct 1, 2026, 7:17 PM