CVE-2026-3749A weakness has been identified in Bytedesk up to 1.3.9.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 8.8 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-284, CWE-434
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
bytedesk bytedesk bytedesk:bytedesk | before 1.4.5.1 | NVD |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.