Parse Server: Session field immutability bypass via falsy-value guard
Priority LOW 29CWE-697Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.
Summary
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.69 and 9.7.0-alpha.14, an authenticated user can bypass the immutability guard on session fields (expiresAt, createdWith) by sending a null value in a PUT request to the session update endpoint. This allows nullifying the session expiry, making the session valid indefinitely and bypassing configured session length policies. This issue has been patched in versions 8.6.69 and 9.7.0-alpha.14.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00218 12th percentileScored 2026-11-07
Fix Fixed parse-server (parse-community): 8.6.69, 9.7.0-alpha.14parse-server (npm): 9.7.0-alpha.14, 8.6.69
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| parse-community | parse-server | before 8.6.69; 9.0.0 to before 9.7.0-alpha.14 | 8.6.69, 9.7.0-alpha.14 | Patch available | CNA |
| — | parse-server (npm) | 9.0.0 to before 9.7.0-alpha.14 | 9.7.0-alpha.14 | Patch available | GHSA-f6j3-w9v3-cq22 |
| — | parse-server (npm) | before 8.6.69 | 8.6.69 | Patch available | GHSA-f6j3-w9v3-cq22 |
- parse-server Vendorparse-community Affected before 8.6.69; 9.0.0 to before 9.7.0-alpha.14 Fixed in 8.6.69, 9.7.0-alpha.14 Patch available CNA
- parse-server (npm) Vendor— Affected 9.0.0 to before 9.7.0-alpha.14 Fixed in 9.7.0-alpha.14 Patch available GHSA-f6j3-w9v3-cq22
- parse-server (npm) Vendor— Affected before 8.6.69 Fixed in 8.6.69 Patch available GHSA-f6j3-w9v3-cq22
CPE configurations NVD · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:* | before 8.6.69; 9.0.0 to before 9.7.0 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha1:*:*:*:node.js:*:* | 9.7.0 alpha1 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha10:*:*:*:node.js:*:* | 9.7.0 alpha10 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha11:*:*:*:node.js:*:* | 9.7.0 alpha11 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha12:*:*:*:node.js:*:* | 9.7.0 alpha12 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha13:*:*:*:node.js:*:* | 9.7.0 alpha13 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha2:*:*:*:node.js:*:* | 9.7.0 alpha2 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha3:*:*:*:node.js:*:* | 9.7.0 alpha3 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha4:*:*:*:node.js:*:* | 9.7.0 alpha4 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha5:*:*:*:node.js:*:* | 9.7.0 alpha5 | Vulnerable | parse-community |
- cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:* Versions before 8.6.69; 9.0.0 to before 9.7.0 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha1:*:*:*:node.js:*:* Versions 9.7.0 alpha1 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha10:*:*:*:node.js:*:* Versions 9.7.0 alpha10 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha11:*:*:*:node.js:*:* Versions 9.7.0 alpha11 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha12:*:*:*:node.js:*:* Versions 9.7.0 alpha12 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha13:*:*:*:node.js:*:* Versions 9.7.0 alpha13 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha2:*:*:*:node.js:*:* Versions 9.7.0 alpha2 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha3:*:*:*:node.js:*:* Versions 9.7.0 alpha3 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha4:*:*:*:node.js:*:* Versions 9.7.0 alpha4 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha5:*:*:*:node.js:*:* Versions 9.7.0 alpha5 Vulnerable ·parse-community
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha6:*:*:*:node.js:*:* | 9.7.0 alpha6 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha7:*:*:*:node.js:*:* | 9.7.0 alpha7 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha8:*:*:*:node.js:*:* | 9.7.0 alpha8 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha9:*:*:*:node.js:*:* | 9.7.0 alpha9 | Vulnerable | parse-community |
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha6:*:*:*:node.js:*:* Versions 9.7.0 alpha6 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha7:*:*:*:node.js:*:* Versions 9.7.0 alpha7 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha8:*:*:*:node.js:*:* Versions 9.7.0 alpha8 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha9:*:*:*:node.js:*:* Versions 9.7.0 alpha9 Vulnerable ·parse-community
Remediation
- Fix · CNA parse-server (parse-community) Fixed in 8.6.69, 9.7.0-alpha.14
- Fix · GHSA-f6j3-w9v3-cq22 parse-server (npm) Fixed in 9.7.0-alpha.14 Advisory →
- Fix · GHSA-f6j3-w9v3-cq22 parse-server (npm) Fixed in 8.6.69 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-34574
- 2026-10-03 Alias added: GHSA-f6j3-w9v3-cq22
References
Patch 5
- https://github.com/parse-community/parse-server/security/advisories/GHSA-f6j3-w9v3-cq22
- https://github.com/parse-community/parse-server/pull/10347
- https://github.com/parse-community/parse-server/pull/10348
- https://github.com/parse-community/parse-server/commit/90802969fc713b7bc9733d7255c7519a6ed75d21
- https://github.com/parse-community/parse-server/commit/ebccd7fe2708007e62f705ee1c820a6766178777
More parse-community Parse-server vulnerabilities
- TI-2022-08574 Command Injection in Parse server CVSS 3.1CRITICAL 10.0
- TI-2024-18136 Parse Server literalizeRegexPart SQL Injection CVSS 3.1CRITICAL 10.0
- TI-2022-18768 Parse Server vulnerable to Remote Code Execution via prototype pollution in MongoDB BSON parser CVSS 3.1CRITICAL 9.8
- TI-2024-31550 Parse Server's custom object ID allows to acquire role privileges CVSS 3.1HIGH 8.1
- TI-2023-18316 Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution CVSS 3.1CRITICAL 9.8
- TI-2026-23790 Parse Server session token exfiltration via `redirectClassNameForKey` query parameter CVSS 4.0CRITICAL 9.9
Sources
- CVE-2026-34574 · CVE Program
- CVE-2026-34574 · NVD
- FIRST EPSS
- GHSA-f6j3-w9v3-cq22 · GitHub Advisory Database · CC BY 4.0
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