-.- CVE-2025-34291

CVE ID	Exploitable	Vendor	Product	Vulnerability	Date added
CVE-2025-34291	True	Langflow	Langflow	Langflow Origin Validation Error Vulnerability	2026-05-21 00:00:00

Description

EUVD-2025-201507: 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.

Recommendations

Not available in demo version.

External Refs:

AVET INS is an owner of VULNDBASE brand and website. This product uses data from the NVD API but is not endorsed or certified by the NVD. See NVD page for more information. CVE is a registered trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE site. CWE is a registered trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE page. KEV (Known Exploited Vulnerabilities) is a catalog maintained by CISA. EUVD is the official EU repository for timely, curated cybersecurity vulnerability intelligence and remediation guidance run by ENISA. DORA (Digital Operational Resilience Act) is and EU directive.