# CVE-2025-34291

> Langflow versions up to and including 1.6.9 contain a chained vulnerability that enables account takeover and remote code execution. An overly permissive CORS configuration (allow_origins='*' with allow_credentials=True) 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. An attacker-controlled origin can therefore obtain fresh access_token / refresh_token pairs for a victim session. Obtained tokens permit access to authenticated endpoints — including bu

- **CVSS:** 9.4
- **EPSS:** 35.4%
- **CISA KEV:** yes (known ransomware use)
- **CWE:** CWE-346

Canonical: https://intel.threadlinqs.com/cve/CVE-2025-34291
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