9.8
CriticalCVSS 3.1 · from ibm
CVE-2026-104339
Langflow OSS is affected by multiple vulnerabilities
Langflow OSS · Code injection · CWE-94AffectedLangflow OSS
FixA patch is linked in the references.
PublishedOct 29, 15:16 · ibm
ScoredOct 29 · 9.8 · ibm
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:09 UTC
What we know
No known exploitation. CISA KEV, checked 22:09 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker only needs network access to the target. No login needed. CVSS: network, no privileges.
A successful attack can read and change data and take the service down. CVSS: high impact on confidentiality, integrity and availability.
A successful attack gives full control of the affected system. CISA: technical impact total.
Description
IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote attacker to execute arbitrary code due to improper neutralization of special elements used in an OS command.
From ibm
Affected and fixed versions
ProductAffectedFixed inLangflow OSS1.0.0 – 1.12.3–
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known