Vulnerability · Published Oct 29, 2026 · Assigned by ibm
CVE-2026-93680Langflow OSS is affected by multiple vulnerabilities
Critical 9.8
In plain English
A critical-severity improper authentication in Langflow OSS from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 82% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, public proof-of-concept code.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)2.2%top 17.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling2Metasploit, Public PoC
Official description
IBM Langflow OSS 1.0.0 through 1.12.8 could allow a remote attacker to bypass security restrictions due to improper authentication.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| IBM | Langflow OSS | 1.0.0 – through 1.12.8 |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://www.ibm.com/support/pages/node/7294467 vendor-advisory, patch