CVE-2026-49136

HIGH EPSS 33.5%
Published Jun 1, 20264w ago · Modified Jun 17, 20261w ago
8.7 CVSS 4.0
High
Find Similar
Published Jun 1, 2026 4w ago
Last Modified Jun 17, 2026 1w ago

Description

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().

CVSS Details

Base Score
8.7
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
33.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-22 Path Traversal Resource Mgmt

References 4

  • github.com https://github.com/Anionex/banana-slides/commit/e8bc490ec8b4b657e07dc3ab4e94fbedcaade421
  • github.com https://github.com/Anionex/banana-slides/issues/429
  • github.com https://github.com/Anionex/banana-slides/pull/430
  • vulncheck.com https://www.vulncheck.com/advisories/banana-slides-path-traversal-via-generate-image-in-ai-service-py

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.