CVE-2026-3749
A weakness has been identified in Bytedesk up to 1.3.9.
Does this matter?
Lower severity and a low EPSS score (0.44%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 2.1 LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.44% probability · 38th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-284, CWE-434
- Affected
- bytedesk/bytedesk
- Source
- cna@vuldb.com
EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/Bytedesk/bytedesk/Product
- https://github.com/Bytedesk/bytedesk/commit/975e39e4dd527596987559f56c5f9f973f64eff7Patch
- https://github.com/Bytedesk/bytedesk/issues/19Exploit, Vendor Advisory
- https://github.com/Bytedesk/bytedesk/issues/19#issue-3993480676Exploit, Vendor Advisory
- https://github.com/Bytedesk/bytedesk/issues/19#issuecomment-3976672845Exploit, Vendor Advisory
- https://github.com/Bytedesk/bytedesk/releases/tag/v1.4.5.1Release Notes
- https://vuldb.com/?ctiid.349727Permissions Required, VDB Entry
- https://vuldb.com/?id.349727Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.768030Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.