CVE-2025-66909

moderate-risk
Published 2025-12-19

Turms AI-Serving module v0.10.0-SNAPSHOT and earlier contains an image decompression bomb denial of service vulnerability. The ExtendedOpenCVImage class in ai/djl/opencv/ExtendedOpenCVImage.java loads images using OpenCV's imread() function without validating dimensions or pixel count before decompression. An attacker can upload a specially crafted compressed image file (e.g., PNG) that is small when compressed but expands to gigabytes of memory when loaded. This causes immediate memory exhaustion, OutOfMemoryError, and service crash. No authentication is required if the OCR service is publicly accessible. Multiple requests can completely deny service availability.

Do I need to act?

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0.34% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (1)

Turms

Affected Vendors

Turms-Im

References (4)

Exploit https://github.com/Xzzz111/public_cve_report/blob/main/CVE-2025-66909_report.md
Product https://github.com/turms-im/turms
Product https://github.com/turms-im/turms/blob/develop/turms-ai-serving/src/main/java/ai...
Exploit https://github.com/Xzzz111/public_cve_report/blob/main/CVE-2025-66909_report.md
32
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal