CVE-2026-90991 — MEDIUM (6.5)

Q: What is CVE-2026-90991?

CVE-2026-90991 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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.

Q: How severe is CVE-2026-90991?

CVE-2026-90991 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-90991?

Check the references section above for vendor advisories and patch information. Affected products include: Langflow Langflow.

Vulnerability 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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Langflow	Langflow	>= 1.0.0, < 1.12.5

Related Weaknesses (CWE)

CWE-770

References

https://www.ibm.com/support/pages/node/7293016Vendor Advisory

FAQ

What is CVE-2026-90991?

CVE-2026-90991 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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.

How severe is CVE-2026-90991?

CVE-2026-90991 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-90991?

Check the references section above for vendor advisories and patch information. Affected products include: Langflow Langflow.