CVE-2026-3748A security flaw has been discovered 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 security flaw has been discovered in Bytedesk up to 1.3.9. This affects the function uploadFile of the file source-code/src/main/java/com/bytedesk/core/upload/UploadRestController.java of the component SVG File Handler. Performing a manipulation results in unrestricted upload. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.4.5.1 is able to mitigate this issue. The patch is named 975e39e4dd527596987559f56c5f9f973f64eff7. Upgrading the affected component is recommended.
- 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/18exploit, issue-tracking, vendor-advisory
- https://github.com/Bytedesk/bytedesk/issues/18#issue-3993448721exploit, issue-tracking, vendor-advisory
- https://github.com/Bytedesk/bytedesk/issues/18#issuecomment-3976672973exploit, issue-tracking, vendor-advisory
- https://github.com/Bytedesk/bytedesk/releases/tag/v1.4.5.1release-notes
- https://vuldb.com/?ctiid.349726permissions-required
- https://vuldb.com/?id.349726third-party-advisory, vdb-entry
- https://vuldb.com/?submit.768028third-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.