CVE-2026-10546: CWE-918 Server-Side Request Forgery (SSRF) in IBM Langflow OSS
IBM Langflow OSS 1.0.0 through 1.9.3 contains a Server-Side Request Forgery (SSRF) vulnerability in the URL component ( src/lfx/src/lfx/components/data_source/url.py ) due to a Time-of-Check/Time-of-Use (TOCTOU) race condition that can be exploited via DNS rebinding.
AI Analysis
Technical Summary
CVE-2026-10546 identifies an SSRF vulnerability in IBM Langflow OSS versions 1.0.0 through 1.9.3. The flaw exists in the URL component (src/lfx/src/lfx/components/data_source/url.py) due to a TOCTOU race condition. This race condition allows an attacker to exploit DNS rebinding to manipulate server-side requests, potentially leading to high confidentiality impact and limited integrity impact without affecting availability. The vulnerability requires network access and low privileges but no user interaction.
Potential Impact
Successful exploitation can lead to high confidentiality impact by allowing unauthorized server-side requests, potentially exposing sensitive information. Integrity impact is limited, and availability is not affected. The attack complexity is high, and the attacker needs low privileges with no user interaction required.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary fix has been documented at this time. Users should monitor IBM advisories for updates and apply patches once available. Until then, consider restricting network access to the affected component and implementing network-level protections against DNS rebinding attacks.
CVE-2026-10546: CWE-918 Server-Side Request Forgery (SSRF) in IBM Langflow OSS
Description
IBM Langflow OSS 1.0.0 through 1.9.3 contains a Server-Side Request Forgery (SSRF) vulnerability in the URL component ( src/lfx/src/lfx/components/data_source/url.py ) due to a Time-of-Check/Time-of-Use (TOCTOU) race condition that can be exploited via DNS rebinding.
CVSS v3.1
Score 7.1high
Affected software
cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:langflow_oss:1.9.3:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-10546 identifies an SSRF vulnerability in IBM Langflow OSS versions 1.0.0 through 1.9.3. The flaw exists in the URL component (src/lfx/src/lfx/components/data_source/url.py) due to a TOCTOU race condition. This race condition allows an attacker to exploit DNS rebinding to manipulate server-side requests, potentially leading to high confidentiality impact and limited integrity impact without affecting availability. The vulnerability requires network access and low privileges but no user interaction.
Potential Impact
Successful exploitation can lead to high confidentiality impact by allowing unauthorized server-side requests, potentially exposing sensitive information. Integrity impact is limited, and availability is not affected. The attack complexity is high, and the attacker needs low privileges with no user interaction required.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary fix has been documented at this time. Users should monitor IBM advisories for updates and apply patches once available. Until then, consider restricting network access to the affected component and implementing network-level protections against DNS rebinding attacks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-06-01T13:00:40.177Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a44256027e9c797195589b1
Added to database: 06/30/2026, 20:21:52 UTC
Last enriched: 07/08/2026, 12:50:07 UTC
Last updated: 08/14/2026, 12:41:08 UTC
Views: 99
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