CVE-2026-101287 Diaple CVE debrief

Who should care

Defenders responsible for Stela deployments should assess exposure and prioritize verification and remediation. This includes reviewing and updating authentication processes, verifying Stela versions, and implementing additional monitoring and authentication checks. Defenders should also consider the potential operational impacts, including potential impersonation of any account, possible compromise of confidentiality and integrity of the application, and

Why it matters

CVE-2026-101287 is a critical authentication bypass vulnerability in Stela versions prior to 1.60.1, allowing remote attackers to impersonate any account. Defenders should prioritize verification and remediation.

• Potential impersonation of any account, including SUPER_ADMIN privileges
• Possible compromise of confidentiality and integrity of the application
• Need for verification of Stela versions and remediation

Technical summary

The vulnerability is due to the use of a cookie named 'authProcess' without validating its integrity. The application stores the user identifier (userId) and the status of the authentication process (validSteps) in this cookie and relies on these values—which can be modified by the client—to complete the login process. This allows a remote attacker to manipulate the cookie to bypass authentication checks and impersonate any account, including one with SUPER_ADMIN privileges. The vulnerability has a CVSS score of 9.3 and a severity of CRITICAL.

Defensive priority

Defenders should prioritize verifying Stela versions and upgrading to 1.60.1 or later, as well as implementing additional monitoring and authentication checks.

Recommended defensive actions

• Verify Stela versions and upgrade to 1.60.1 or later
• Implement additional monitoring and authentication checks
• Review and update authentication processes
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• 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
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD vulnerability detail page provide information on the vulnerability. Additional verification is needed to confirm affected versions and remediation. The vulnerability is due to the use of a cookie named 'authProcess' without validating its integrity. The application stores the user identifier (userId) and the status of the authentication process (validSteps) in this cookie and relies on these values—which can be modified by the client—to complete the login process. Defenders should verify Stela versions and plan

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.