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CVE-2026-3346

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

Published: Apr 30, 2026Updated: May 11, 2026 Sources: CVE List NVDCWE-89
6.4MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 94.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-89

Affected Products

Langflow DesktopIBM
On-premDesktop App
Enterprise Software / itsm-monitoring
langflow desktoplangflow
SaaS
AI / ML / ai-agent-tooling
ibmcommercialUSEnterprise Softwareaka international business machines
langflowcommercialAI / MLaka langflow-base, langflow desktop, langflow

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

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

Timeline

Published
Apr 30, 2026
Last Updated
May 11, 2026

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