Protected session-field disclosure via authorization context bypass
Published Apr 7, 2026 · Updated Apr 7, 2026
Authorization bypass in Parse Server 7.0.0 through 8.6.74 and 9.0.0 through 9.8.0-alpha.6 exposes protected data to remote authenticated users. The current-session GET handler validates a session token but returns the loaded session without re-fetching it under the requester's authorization context, skipping protectedFields filtering and class-level permissions. Exploitation requires a valid session token and operator-configured protected _Session fields; disclosure is limited to fields on the requester's own session.
Summary
What happened
Authorization bypass in Parse Server 7.0.0 through 8.6.74 and 9.0.0 through 9.8.0-alpha.6 exposes protected data to remote authenticated users. The current-session GET handler validates a session token but returns the loaded session without re-fetching it under the requester's authorization context, skipping protectedFields filtering and class-level permissions. Exploitation requires a valid session token and operator-configured protected _Session fields; disclosure is limited to fields on the requester's own session.
The record
- CVE
- CVE-2026-39381
- Published
- Apr 7, 2026
- Updated
- Apr 7, 2026
- Vendor
- Parse Platform
- Product
- Parse Server
- Classifications
- CWE-863
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 7, 2026CVE publishedPublication date reported by the CVE source.
- Apr 7, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=>= 7.0.0, < 8.6.75
- Affected versionversion=>= 9.0.0, < 9.8.0-alpha.7
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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