Langflow Origin Validation Error Vulnerability
- When
- · day precision
- Where
- Global (internet)
- Category
- cyber_exploit
Langflow contains an origin validation error vulnerability in which an overly permissive CORS configuration combined with a refresh token cookie configured as SameSite=None allows a malicious webpage to perform cross-origin requests that include credentials and successfully call the refresh endpoint. This could allow the attacker to execute arbitrary code and achieve full system compromise via obtained tokens that permit access to authenticated endpoints.
Involved actors & entities
People, organizations and places machine-extracted from the source reporting — they power search and the correlation graph. Extracted automatically, so they can include noise, especially on events still marked unverified.
Sources
- CISA ↗ · first seen 2026-05-21 00:00 UTC
Defaxon links out to the original reporting and never republishes article text.
Correlated events
Computed by the Defaxon correlation engine — linked by shared actors, co-location, and temporal proximity. Scored hypotheses, never causal claims.
No correlated events found in the current window. As more events arrive, connections form automatically.