--- title: "CVE-2026-81213: IBM Langflow OSS - Information Disclosure" description: "IBM Langflow OSS 1.0.0 through 1.11.5 contains an information disclosure vulnerability caused by improper validation of user-supplied URLs, letting remote attackers obtain sensitive information from internal network resources, exploit requires crafted URL input." url: https://panop.io/threat-heartbeat/CVE-2026-81213/ --- # CVE-2026-81213 IBM Langflow OSS - Information Disclosure IBM Langflow OSS 1.0.0 through 1.11.5 contains an information disclosure vulnerability caused by improper validation of user-supplied URLs, letting remote attackers obtain sensitive information from internal network resources, exploit requires crafted URL input. CVSS base score 8.6 /10 High CISA KEV Not listed Public exploit None known Authentication Not required EPSS 0.49% chance of exploitation in 30 days [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-81213) ## Details Type Information Disclosure Impact Information Disclosure CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N Published 10 September 2026 Updated 15 October 2026 Weakness [CWE-918](https://cwe.mitre.org/data/definitions/918.html) ## Vendor fix Update to the latest version beyond 1.11.5. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-81213](https://nvd.nist.gov/vuln/detail/CVE-2026-81213) - [https://www.ibm.com/support/pages/node/7286665](https://www.ibm.com/support/pages/node/7286665) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)