CVE-2026-107327: IBM Langflow OSS (Critical, CVSS 9.9)
CVE-2026-107327CriticalPublic exploitIBM Langflow OSS
- CVSS
- 9.9 Critical (v3.1)
- Exploited in the wild
- Not on CISA’s KEV list
- Public exploit
- Yes, reported in 1 GitHub repository
- Weakness
- CWE-862
- Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H- Published
- Oct 29, 2026
What it is
IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote authenticated attacker to execute arbitrary code due to missing authorization.
Description from the National Vulnerability Database.
What to do
Check whether you run IBM Langflow OSS, then apply the vendor’s fix or mitigation from the advisories below. Because this flaw is exploited or has public exploit code, treat it as urgent and check for signs of compromise, not just the patch level.
Sources: NVD, FIRST EPSS, CISA KEV, and public exploit databases (availability only). ThreatRoundup reports whether public exploit code exists but never links to it: fake proof-of-concepts that infect security researchers are common. This page updates automatically.