urms 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.
| Link | Resource |
|---|---|
| https://github.com/Xzzz111/public_cve_report/blob/main/CVE-2025-66909_report.md | Exploit Third Party Advisory |
| https://github.com/turms-im/turms | Product |
| https://github.com/turms-im/turms/blob/develop/turms-ai-serving/src/main/java/ai/djl/opencv/ExtendedOpenCVImage.java#L37 | Product |
| https://github.com/Xzzz111/public_cve_report/blob/main/CVE-2025-66909_report.md | Exploit Third Party Advisory |
02 Jan 2026, 19:50
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:turms-im:turms:0.10.0-snapshot:*:*:*:*:*:*:* | |
| First Time |
Turms-im
Turms-im turms |
|
| References | () https://github.com/Xzzz111/public_cve_report/blob/main/CVE-2025-66909_report.md - Exploit, Third Party Advisory | |
| References | () https://github.com/turms-im/turms - Product | |
| References | () https://github.com/turms-im/turms/blob/develop/turms-ai-serving/src/main/java/ai/djl/opencv/ExtendedOpenCVImage.java#L37 - Product |
19 Dec 2025, 18:00
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Published : 2025-12-19 15:15
Updated : 2026-01-02 19:50
NVD link : CVE-2025-66909
Mitre link : CVE-2025-66909
CVE.ORG link : CVE-2025-66909
JSON object : View
Improper Handling of Highly Compressed Data (Data Amplification)