CVE-2025-66908: Turms AI-Serving module v0.10.0-SNAPSHOT and earlier contains an improper file type validation vulnerability i

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MEDIUM 5.3REMOTEDOWNGRADE

CVE-2025-66908 is a medium-severity flaw (CVSS 5.3) 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 improper file type validation vulnerability in the OCR image upload functionality. The OcrController in turms-ai-serving/src/main/java/im/turms/ai/domain/ocr/controller/OcrController.java uses the @FormData(contentType = MediaTypeConst.IMAGE) annotation to restrict uploads to image files, but this constraint is not properly enforced. The system relies solely on client-provided Conte

Why this priority

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	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Weakness	CWE-434
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-2025-66908?

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

Is CVE-2025-66908 being exploited?

CVE-2025-66908 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-2025-66908 affect?

CVE-2025-66908 affects turms. Severity is medium (CVSS 5.3). Turms AI-Serving module v0.10.0-SNAPSHOT and earlier contains an improper file type validation vulnerability in the OCR image upload functionality. The OcrController in turms-ai-serving/src/main/java/im/turms/ai/domain/ocr/controller/OcrCon

How urgent is CVE-2025-66908?

Priority 38/100. Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Java vulnerabilities

Related CVEs

CVE-2025-66909 HIGH 7.5 DOWNGRADE Turms AI-Serving module v0.10.0-SNAPSHOT and earlier contains an image decompression bomb denial of service vu
CVE-2025-66911 MEDIUM 6.5 DOWNGRADE Turms IM Server v0.10.0-SNAPSHOT and earlier contains a broken access control vulnerability in the user online
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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