CVE-2026-105828 parse-community CVE debrief

Who should care

Defenders responsible for Parse Server deployments should assess exposure and prioritize verification and remediation. This includes operators managing Parse Server instances, platform administrators, vulnerability management teams, and security teams responsible for monitoring and protecting against potential information disclosure.

Why it matters

CVE-2026-105828 is a medium-severity vulnerability in Parse Server that can lead to information disclosure. Defenders should prioritize verifying and upgrading to the latest version of Parse Server.

• Unauthenticated attackers can learn pointer and relation target classes
• Potential for information disclosure
• Need for verification and remediation

Technical summary

The vulnerability occurs when GraphQL validation error messages reveal hidden class names if public introspection is disabled. Unauthenticated attackers with the public Application Id can exploit this by sending crafted operations that trigger unknown-argument or invalid enum value errors. This allows them to learn pointer and relation target classes. The issue affects Parse Server versions 9.0.0 before 9.10.1-alpha.12 and 8.2.2 before 8.6.92. Defenders should prioritize verifying and upgrading to the latest version of Parse Server, specifically 9.10.1-alpha.12 or later for version 9, and 8.6.92 or later for version 8.

Defensive priority

Defenders should prioritize verifying and upgrading to the latest version of Parse Server, specifically 9.10.1-alpha.12 or later for version 9, and 8.6.92 or later for version 8.

Recommended defensive actions

• Verify and upgrade to the latest version of Parse Server
• Restrict public introspection
• Monitor for crafted operations triggering unknown-argument or invalid enum value errors
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check 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

Evidence notes

The CVE record and source item provide details on the vulnerability, including its description, affected versions, and potential impact. However, there is limited information on actual exploitation or victim impact.

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.