CVE-2026-111640 kuaifan CVE debrief

Who should care

Defenders responsible for systems using DooTask versions up to 1.9.66 should assess potential exposure and impact. This includes operators, platform administrators, vulnerability management teams, and security teams who need to verify exposure, assess potential impact, and implement compensating controls to restrict access to OKR comment dialogs.

Why it matters

CVE-2026-111640 is a missing authorization vulnerability in DooTask versions up to 1.9.66, allowing authenticated users to read and inject messages in OKR comment dialogs, potentially leading to data exposure and integrity risks.

• Authenticated users can read messages in OKR comment dialogs
• Authenticated users can inject messages in OKR comment dialogs
• Potential data exposure and integrity risks

Technical summary

The vulnerability is caused by a missing authorization check in the WebSocketDialog::checkDialog() function for dialogs with group_type 'okr'. This allows authenticated users to supply the dialog_id of OKR comment dialogs to msg__list, msg__one, or msg__send* endpoints to read and inject messages. The vulnerability allows unauthorized access to sensitive information and potentially leads to data exposure and integrity risks. Defenders should prioritize verifying exposure and assessing potential impact on systems using DooTask versions up to 1.9.66.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact on systems using DooTask versions up to 1.9.66.

Recommended defensive actions

• Verify DooTask version and check for exposure
• Assess potential impact on systems using DooTask versions up to 1.9.66
• Implement compensating controls to restrict access to OKR comment dialogs
• 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 vulnerability is caused by a missing authorization check in the WebSocketDialog::checkDialog() function for dialogs with group_type 'okr'. This allows authenticated users to supply the dialog_id of OKR comment dialogs to msg__list, msg__one, or msg__send* endpoints to read and inject messages. The source item provides details about the vulnerability, and defenders should verify exposure and assess potential impact on systems using DooTask versions up to 1.9.66.

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.