CVE-2026-6600

A flaw has been found in langflow-ai langflow up to 1.8.3. This affects an unknown function of the file src/frontend/src/modals/IOModal/components/chatView/chatMessage/components/edit-message.tsx of the component Frontend React Component Rendering. Executing a manipulation can lead to cross site scripting. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v4.0

2.0 LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

3.5 LOWCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

CVSS v2.0

4.0 MEDIUMAV:N/AC:L/Au:S/C:N/I:P/A:N

EPSS

0.19% chance of exploitation in the next 30 days, 9th percentile

Published

2026-04-20

Proof-of-concept exploits (1)

• https://gist.github.com/chenhouser2025/935aa5d4556264ba408059eec0960b1a

References

• CVE Record
• NVD entry

Related

• CVE-2026-6599
• CVE-2026-66004
• CVE-2026-6598
• CVE-2026-66005
• CVE-2026-6597
• CVE-2026-66006