CVE-2026-6619 langgenius CVE debrief

Who should care

Defenders responsible for systems using langgenius dify up to 1.13.3 should assess the risk of cross-site scripting attacks and prioritize verification and mitigation efforts. This includes reviewing the affected component and version, considering compensating controls until an official fix is available, and monitoring for potential exploitation attempts. Operators, platform administrators, vulnerability management teams, and security teams should review

Why it matters

CVE-2026-6619 is a cross-site scripting vulnerability in langgenius dify up to 1.13.3. Defenders should prioritize verification, risk assessment, and mitigation efforts to prevent potential cross-site scripting attacks.

• Cross-site scripting attacks may be initiated remotely
• Defenders need to verify the presence of the vulnerable component in their systems
• Compensating controls may be necessary until an official fix is available
• Monitoring for potential exploitation attempts is recommended

Technical summary

The vulnerability is located in the ImagePreview component's openInNewTab function in image-uploader/image-preview.tsx. The manipulation of the filename argument leads to cross-site scripting. The attack may be initiated remotely. This vulnerability affects langgenius dify up to version 1.13.3, and defenders should focus on verifying the presence of this vulnerability in their systems, assessing the risk of cross-site scripting attacks, and considering compensating controls until an official fix is available. The CVE record and NVD entry provide details about the vulnerability, including its description, CVSS score, and affected component.

Defensive priority

Defenders should prioritize verifying the presence of this vulnerability in their systems and assessing the risk of cross-site scripting attacks. This involves reviewing the affected component and version, and considering compensating controls until an official fix is available.

Recommended defensive actions

• Verify the presence of the vulnerable component in your systems
• Assess the risk of cross-site scripting attacks
• Consider compensating controls until an official fix is available
• Monitor for potential exploitation attempts
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and NVD entry provide details about the vulnerability, including its description, CVSS score, and affected component. However, the vendor did not respond to the disclosure, and there is limited information on affected versions or remediation.

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.