Unauthenticated Superuser Token Issuance via Auto-Login Endpoint
Published Jul 17, 2026
9.8
CRITICALCVSS 3.1
EPSS 3.21%
Description
IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to gain unauthorized access due to improper authentication in the /api/v1/login/auto_login endpoint. The endpoint issues long-lived superuser bearer tokens without requiring authentication when the AUTO_LOGIN configuration is enabled (enabled by default), which may allow an unauthenticated network attacker to obtain full administrative access. Additionally, permissive cross-origin resource sharing (CORS) settings may allow tokens to be exposed to unintended origins, increasing the risk of unauthorized access.
Affected products
-
- Version 1.0.0StatusaffectedConstraints<=1.10.0
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| IBM | Langflow OSS | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
IBM strongly recommends addressing the vulnerability now by upgrading Langflow OSS to version 1.10.1 https://pypi.org/project/langflow/
References (2)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-45258 Advisory
- https://www.ibm.com/support/pages/node/7278926 vendor-advisorypatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-45258 | Advisory | |
| https://www.ibm.com/support/pages/node/7278926 | vendor-advisorypatchVendor Advisory |
Change history (0)
No recorded changes yet.