6.5
MediumCVSS 3.1 · from ibm
CVE-2026-90991
Langflow OSS is affected by multiple vulnerabilities
Langflow OSS · Allocation without limits · CWE-770AffectedLangflow OSS
FixA patch is linked in the references.
PublishedOct 29, 15:18 · ibm
ScoredOct 29 · 6.5 · ibm
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:07 UTC
What we know
No known exploitation. CISA KEV, checked 22:07 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker needs network access and an account. CVSS: network, low privileges.
A successful attack can take the service down. CVSS impact.
Description
IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote authenticated attacker to cause a denial of service due to allocation of resources without limits or throttling.
From ibm
Affected and fixed versions
ProductAffectedFixed inLangflow OSS1.0.0 – 1.12.4–
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known