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1 vulnerability by Anionex

CVE-2026-49136 (GCVE-0-2026-49136)

Vulnerability from cvelistv5 – Published: 2026-06-01 19:09 – Updated: 2026-06-02 15:39 X_Open Source
VLAI
Title
Banana Slides 0.4.0 Path Traversal via generate_image() in ai_service.py
Summary
Banana Slides through 0.4.0, patched in commit e8bc490, contains a path traversal vulnerability in the generate_image() function within the AI service backend that allows unauthenticated attackers to read arbitrary image-format files outside the intended uploads directory by exploiting an incomplete path prefix check using os.path.startswith() without a trailing separator. Attackers can supply crafted markdown image references in user-controlled page descriptions that resolve to sibling directories whose names share the uploads folder prefix, bypassing the directory confinement check and causing the application to read files from unintended locations via PIL Image.open().
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
Anionex banana-slides Affected: 0 , ≤ 0.4.0 (semver)
Unaffected: e8bc490ec8b4b657e07dc3ab4e94fbedcaade421 (git)
Create a notification for this product.
Date Public
2026-05-30 00:00
Credits
YU SUN
Show details on NVD website
To clipboard 

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