CVE-2026-3749Disclosure(bytedesk / bytedesk)

LOWCVSS 8.8 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-284CWE-434

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • bytedesk

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Affected systems

Vendors
Products
bytedesk

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-03-08: 2Technical Details · 2026-03-08: 203-08
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-3749 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… https://www.cve.org/CVERecord?id=CVE-2026-3749

    Post summary

    A weakness in Bytedesk version up to 1.3.9 affecting the `handleFileUpload` function has been disclosed; no PoC, exploit, active exploitation, or patch information is provided.

    0000078
    56.6K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-3749 Unrestricted SVG File Upload Vulnerability in Bytedesk Through 1.3.9 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-3749

    Post summary

    A new unrestricted SVG file upload vulnerability (CVE‑2026‑3749) has been identified in Bytedesk version 1.3.9.

    0000041
    4.0K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appbytedeskbytedesk---

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