CVE-2026-12765 IBM CVE debrief

Who should care

Defenders and security teams responsible for systems using Langflow OSS versions 1.0.0 through 1.10.2 should assess exposure and prioritize verification and potential remediation. This includes operators, platform administrators, and vulnerability management teams. They should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. Additionally, they should plan vendor-supported updates or mitigations,

Why it matters

CVE-2026-12765 is a server-side request forgery (SSRF) vulnerability in IBM Langflow OSS versions 1.0.0 through 1.10.2. Defenders should prioritize verifying exposure, assessing potential impact, and implementing compensating controls to detect and prevent SSRF attacks. The vulnerability may allow unauthenticated attackers to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks. Remediation involves updating to version 1.10.3 or later.

• Potential network enumeration by attackers
• Possible facilitation of other attacks using the vulnerable system
• Need for verification of Langflow OSS version and exposure
• Priority on updating to version 1.10.3 or later

Technical summary

IBM Langflow OSS versions 1.0.0 through 1.10.2 are vulnerable to server-side request forgery (SSRF) due to improper handling of requests. An unauthenticated attacker may send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks. The vulnerability has a CVSS score of 6.5 and is classified as MEDIUM severity. Defenders should prioritize verifying exposure and assessing potential impact, focusing on systems using Langflow OSS versions 1.0.0 through 1.10.2. The CVE record and NVD entry provide additional technical details on the vulnerability.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact, focusing on systems using Langflow OSS versions 1.0.0 through 1.10.2.

Recommended defensive actions

• Verify Langflow OSS version and check for updates to 1.10.3 or later
• Assess exposure and potential impact on systems using Langflow OSS versions 1.0.0 through 1.10.2
• Implement compensating controls to detect and prevent SSRF attacks
• Review relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description, CVSS score, and affected versions. The evidence is based on official CVE Program and NIST NVD sources. Defenders should verify the affected versions (1.0.0 through 1.10.2) and assess potential impact. The vulnerability allows unauthenticated attackers to send unauthorized requests, potentially leading to network enumeration or facilitating other attacks.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.