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Vulnerability record · CVE-2025-66909 · published 19 December 2025

CVE-2025-66909: Turms-im turms vulnerability

TTurms Im · Turms

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.

7.5 CVSS 3.1 High EPSS 0.53% · top 57.7% CWE-409 · CWE-409
7.5CVSS 3.1 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/Xzzz111/public_cve_report/blob/main/CVE-2025-66909_report.md ExploitThird 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 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

6.5CVE-2025-66911Turms-im turms improper access control vulnerabilityTurms IM Server v0.10.0-SNAPSHOT and earlier contains a broken access control vulnerability in the user online status query functionality. The handle…EPSS 0.33%6.1CVE-2025-66906Turms-im turms cross-site request forgery vulnerabilityCross Site Request Forgery (CSRF) vulnerability in Turms Admin API thru v0.10.0-SNAPSHOT allows attackers to gain escalated privileges.EPSS 0.13%6.0CVE-2025-66910Turms-im turms sensitive information in log file vulnerabilityTurms Server v0.10.0-SNAPSHOT and earlier contains a plaintext password storage vulnerability in the administrator authentication system. The BaseAdm…EPSS 0.22%5.3CVE-2025-66908Turms-im turms unrestricted file upload vulnerabilityTurms AI-Serving module v0.10.0-SNAPSHOT and earlier contains an improper file type validation vulnerability in the OCR image upload functionality. T…EPSS 0.44%

Source: NIST National Vulnerability Database (record CVE-2025-66909), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.