Parse Server before 8.6.112 and 9.0.0 before 9.10.6-alpha.4 contains an authorization bypass in the session upgrade endpoint, which creates a new session for any valid session token without enforcing the _Session class create class-level permission. Attackers holding a user's session token can send an already revocable token to /upgradeToRevocableSession to obtain additional sessions with fresh expiration that persist after the original session is logged out.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
parse-community parse-server unaffected
Version Status Constraints
9.0.0 affected < 9.10.6-alpha.4
9.10.6-alpha.4 unaffected —
parse-community parse-server unaffected
Version Status Constraints
0 affected < 8.6.112
8.6.112 unaffected —

No data.

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Project Subscriptions

Vendors Products
Parseplatform Subscribe
Parse-server Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/parse-community/parse-server/pull/10808 cve-icon
https://github.com/parse-community/parse-server/pull/10809 cve-icon
https://github.com/parse-community/parse-server/security/advisories/GHSA-2j2x-c587-q33g cve-icon
https://www.vulncheck.com/advisories/parse-server-before-8.6.112-and-9.0.0-before-9.10.6-alpha.4-session-permission-bypass-via-upgradetorevocablesession cve-icon
History

Tue, 03 Nov 2026 14:45:00 +0000

Type Values Removed Values Added
Description Parse Server before 8.6.112 and 9.0.0 before 9.10.6-alpha.4 contains an authorization bypass in the session upgrade endpoint, which creates a new session for any valid session token without enforcing the _Session class create class-level permission. Attackers holding a user's session token can send an already revocable token to /upgradeToRevocableSession to obtain additional sessions with fresh expiration that persist after the original session is logged out.
Title Parse Server before 8.6.112 and 9.0.0 before 9.10.6-alpha.4 Session Permission Bypass via upgradeToRevocableSession
First Time appeared Parseplatform
Parseplatform parse-server
Weaknesses CWE-863
CPEs cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:*
Vendors & Products Parseplatform
Parseplatform parse-server
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N'}

cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-03T14:28:12.320Z

Reserved: 2026-11-03T12:28:46.507Z

Link: CVE-2026-121413

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses