CVE-2025-66909: Turms AI-Serving module v0.10.0-SNAPSHOT and earlier contains an image decompression bomb denial of service vu

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2025-66909 is a high-severity flaw (CVSS 7.5) affecting turms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-409
Published	2025-12-19
Last modified	2026-10-13

Publisher (CNA): MITRE · Vendor: turms-im

Last updated 2026-10-13 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-19 15:15 UTCPublished CVE record published
2026-10-13 11:10 UTCUpdated Record last modified

turms-im turms DOWNGRADE

Affected: 0.10.0-snapshot

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.10.0-snapshot

1. Check installed version

apt-cache policy turms || rpm -q turms || turms --version

2. No fixed release: DOWNGRADE to a release before 0.10.0-snapshot (Debian / Ubuntu)

apt-cache madison turms sudo apt install turms=<VERSION_BEFORE_0.10.0-snapshot> sudo apt-mark hold turms

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list turms sudo dnf downgrade turms-<VERSION_BEFORE_0.10.0-snapshot> sudo dnf versionlock add turms

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-66909?

turms: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-66909 being exploited?

CVE-2025-66909 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-66909 affect?

CVE-2025-66909 affects turms. Severity is high (CVSS 7.5). 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

How urgent is CVE-2025-66909?

Priority 47/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Java vulnerabilities

Related CVEs

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CVE-2025-66910 MEDIUM 6.0 DOWNGRADE Turms Server v0.10.0-SNAPSHOT and earlier contains a plaintext password storage vulnerability in the administr
CVE-2025-66906 MEDIUM 6.1 DOWNGRADE Cross Site Request Forgery (CSRF) vulnerability in Turms Admin API thru v0.10.0-SNAPSHOT allows attackers to g

References

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