CVE-2026-93680: IBM Langflow OSS · Improper Authentication
Affects IBM Langflow OSSSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 29 Oct 2026, 15:53 UTC
Thin evidence
One scorer or none| CNA (ibm) | CVSS 3.1 | 9.8 |
|---|
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 29 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| IBMLangflow OSS | Affected
| Fixed in– |
CPE configurations (2)
cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:langflow_oss:1.12.8:*:*:*:*:*:*:*
AI-suggested
Until a fix is available, restrict network access to the affected versions and monitor for any suspicious activity related to authentication bypass attempts.
Description
IBM Langflow OSS versions 1.0.0 through 1.12.8 contain an improper authentication vulnerability (CWE-287) that allows remote attackers to bypass security restrictions. This flaw can lead to full compromise of confidentiality, integrity, and availability of the affected system. The vulnerability is rated critical with a CVSS score of 9.8.