CVE-2026-3346

Stored Cross-Site Scripting (XSS) in Langflow Markdown Rendering via rehypeRaw

CVSS 6.4 MEDIUMEPSS 0.2%CWE-89

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.4EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

30 Apr 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Affected products

IBM · Langflow Desktop

References

https://www.ibm.com/support/pages/node/7271095