What’s Vulnerable › Vulnerabilities

CVE-2026-112769: Parse Server before 8.6.98 and 9.x before 9.10.3-alpha.1 Session Class-Level Permission Bypass

• Severity: low (CVSS 2.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-19 · updated 2026-10-20
• Weakness: CWE-863

Description

Parse Server before 8.6.98 and 9.0.0 before 9.10.3-alpha.1 does not enforce the create and addField class-level permissions of the _Session class when creating sessions. An authenticated user, or anyone holding that user's session token, can send POST requests to /sessions or /classes/_Session to create additional sessions for that user and add fields to _Session; these sessions are not revoked when the original session is logged out.

Affected products

• parse-community parse-server: from 9.0.0 before 9.10.3-alpha.1; before 8.6.98 — fixed in 8.6.98, 9.10.3-alpha.1

How to fix

Upgrade to a fixed version: parse-community parse-server 8.6.98, 9.10.3-alpha.1. Check the vendor advisory for mitigations.

References

• https://github.com/parse-community/parse-server/security/advisories/GHSA-gj37-5hg5-p729
• https://www.vulncheck.com/advisories/parse-server-before-8.6.98-and-9-x-before-9.10.3-alpha.1-session-class-level-permission-bypass

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