CVE-2026-12767

Langflow is vulnerable to server-side request forgery due to missing egress validation on server-side URL fetches

Published Sep 14, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
IBM Langflow OSS 1.0.0 through 1.11.5 is vulnerable to server-side request forgery (SSRF). This may allow an unauthenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

Remediation

Vendor Solution

IBM strongly recommends addressing the vulnerability now by upgrading Langflow OSS to version 1.11.6

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Langflow
Langflow langflow
CPEs cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*
Vendors & Products Langflow
Langflow langflow
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description IBM Langflow OSS 1.0.0 through 1.11.5 is vulnerable to server-side request forgery (SSRF). This may allow an unauthenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.
Title Langflow is vulnerable to server-side request forgery due to missing egress validation on server-side URL fetches
First Time appeared Ibm
Ibm langflow Oss
Weaknesses CWE-918
CPEs cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm langflow Oss
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Sep 15, 2026, 5:31 PM
Reserved
Jun 19, 2026, 10:35 PM
Status
Analyzed
Published
Sep 14, 2026, 9:17 PM
Modified
Nov 3, 2026, 6:27 PM