CVE-2026-112768 parse-community CVE debrief

Who should care

Defenders responsible for Parse Server instances, especially those with passwordPolicy.maxPasswordHistory or doNotAllowUsername set, should assess exposure and prioritize updates or compensating controls.

Why it matters

This vulnerability allows unauthorized disclosure of user information in Parse Server instances, potentially leading to further exploitation. Defenders should prioritize verifying exposure, assessing configurations, and updating vulnerable instances.

• Verify configurations for potential exposure
• Assess and update vulnerable instances
• Monitor for potential unauthorized access attempts

Technical summary

The vulnerability allows an unauthorized caller to confirm guessed usernames or emails and, under certain configurations, guessed current or previous passwords. This is possible because Parse Server evaluates checks against the target account during a user update before authorizing the caller. The issue is particularly concerning for instances with passwordPolicy.maxPasswordHistory or doNotAllowUsername set, as it could lead to unauthorized disclosure of sensitive user information. Defenders should prioritize verifying exposure and assessing configurations for Parse Server instances, especially those with specific security policies enabled.

Defensive priority

Defenders should prioritize verifying exposure and assessing configurations for Parse Server instances, especially those with passwordPolicy.maxPasswordHistory or doNotAllowUsername set.

Recommended defensive actions

• Verify Parse Server version and configurations
• Assess exposure for instances with passwordPolicy.maxPasswordHistory or doNotAllowUsername set
• Update to version 8.6.99 or 9.10.3-alpha.2 if vulnerable
• 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 affected versions and configurations. However, specific instances of exploitation or victim data are not provided. Defenders should verify the configurations of their Parse Server instances, especially those with passwordPolicy.maxPasswordHistory or doNotAllowUsername set, to assess potential exposure. Evidence is limited to vendor and third-party advisories, which indicate that the vulnerability allows unauthorized callers to confirm guessed usernames or

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.