CVE-2025-34291
HIGH(8.8)KEV — Aktiv ausgenutztCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 8.8 — Hoch
- EPSS 30%
- Im CISA KEV-Katalog (aktiv ausgenutzt)
Erwähnungen (letzte 60 Tage)
CISA KEV
Bestätigt ausgenutzt
EPSS-Score
30%
Exploit-Wahrscheinlichkeit (30 Tage)
CVSS Score
8.8
Technische Schwere
Beschreibung
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 built-in code-execution functionality — allowing the attacker to execute arbitrary code and achieve full system compromise.
Referenzen
- https://github.com/langflow-ai/langflow
- https://www.obsidiansecurity.com/blog/cve-2025-34291-critical-account-takeover-a...
- https://www.vulncheck.com/advisories/langflow-cors-misconfiguration-to-token-hij...
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-...
- https://www.crowdsec.net/vulntracking-report/cve-2025-34291