CVE-2026-3749

Description

A weakness has been identified in Bytedesk up to 1.3.9. This vulnerability affects the function handleFileUpload of the file source-code/src/main/java/com/bytedesk/core/upload/UploadRestService.java of the component SVG File Handler. Executing a manipulation can lead to unrestricted upload. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 1.4.5.1 is able to resolve this issue. This patch is called 975e39e4dd527596987559f56c5f9f973f64eff7. It is recommended to upgrade the affected component.

Predictions

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

References

• https://github.com/Bytedesk/bytedesk/
• https://github.com/Bytedesk/bytedesk/commit/975e39e4dd527596987559f56c5f9f973f64eff7
• https://github.com/Bytedesk/bytedesk/issues/19
• https://github.com/Bytedesk/bytedesk/issues/19#issue-3993480676
• https://github.com/Bytedesk/bytedesk/issues/19#issuecomment-3976672845
• https://github.com/Bytedesk/bytedesk/releases/tag/v1.4.5.1
• https://vuldb.com/?ctiid.349727
• https://vuldb.com/?id.349727
• https://vuldb.com/?submit.768030

CWEs

CWE-284 CWE-434

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