PT-2026-3399 · Lwj Flow · Lwj Flow

Maoqiu · Published 2026-01-18 · Updated 2026-01-18 · CVE-2026-1126

Positive Technologies (AI Summary)

CVSS v2.0

6.5

Medium

Base vector

AV:N/AC:L/Au:S/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions lwj Flow (affected versions not specified)

Description A security issue exists in lwj Flow related to unrestricted file uploads. The uploadFile function within the SVG File Handler component, located in the file flow-masterflow-front-restsrcmainjavacomdragonflowwebresourceflowFormResource.java, is susceptible to manipulation through the File argument. This allows for unrestricted upload capabilities and can be exploited remotely. The exploit has been publicly disclosed. The product uses a continuous delivery model, making specific version details unavailable. The project maintainers were notified of the issue but have not yet responded.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Unrestricted File Upload

Improper Access Control

Weakness Enumeration

CWE-434

CWE-284

Related Identifiers

CVE-2026-1126

Affected Products

Lwj Flow

References · 8

• 🔥 https://gitee.com/lwj/flow/issues/IDIQSE · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-1126 · Security Note
• https://twitter.com/CVEnew/status/2012929942728609850 · Twitter Post
• https://vuldb.com/?id.341718 · Note
• https://twitter.com/VulmonFeeds/status/2012940085935648939 · Twitter Post
• https://gitee.com/lwj/flow · Note
• https://vuldb.com/?ctiid.341718 · Note
• https://vuldb.com/?submit.735122 · Note