Parse Server: MFA single-use token bypass via concurrent authData login requests
Priority LOW 11CWE-367Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · 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 8.6.64 and 9.7.0-alpha.8, an attacker who possesses a valid authentication provider token and a single MFA recovery code or SMS one-time password can create multiple authenticated sessions by sending concurrent login requests via the authData login endpoint. This defeats the single-use guarantee of MFA recovery codes and SMS one-time passwords, allowing session persistence even after the legitimate user revokes detected sessions. This issue has been patched in versions 8.6.64 and 9.7.0-alpha.8.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00317 24th percentileScored 2026-11-07
Fix Fixed parse-server (parse-community): 8.6.64, 9.7.0-alpha.8parse-server (npm): 9.7.0-alpha.8, 8.6.64
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 8.6.64; 9.0.0 to before 9.7.0-alpha.8 | 8.6.64, 9.7.0-alpha.8 | Patch available | CNA |
| — | parse-server (npm) | 9.0.0 to before 9.7.0-alpha.8 | 9.7.0-alpha.8 | Patch available | GHSA-w73w-g5xw-rwhf |
| — | parse-server (npm) | before 8.6.64 | 8.6.64 | Patch available | GHSA-w73w-g5xw-rwhf |
- parse-server Vendorparse-community Affected before 8.6.64; 9.0.0 to before 9.7.0-alpha.8 Fixed in 8.6.64, 9.7.0-alpha.8 Patch available CNA
- parse-server (npm) Vendor— Affected 9.0.0 to before 9.7.0-alpha.8 Fixed in 9.7.0-alpha.8 Patch available GHSA-w73w-g5xw-rwhf
- parse-server (npm) Vendor— Affected before 8.6.64 Fixed in 8.6.64 Patch available GHSA-w73w-g5xw-rwhf
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:* | before 8.6.64; 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: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: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:*:*:*:*:*:node.js:*:* Versions before 8.6.64; 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: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
- 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
Remediation
- Fix · CNA parse-server (parse-community) Fixed in 8.6.64, 9.7.0-alpha.8
- Fix · GHSA-w73w-g5xw-rwhf parse-server (npm) Fixed in 9.7.0-alpha.8 Advisory →
- Fix · GHSA-w73w-g5xw-rwhf parse-server (npm) Fixed in 8.6.64 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-34224
- 2026-10-03 Alias added: GHSA-w73w-g5xw-rwhf
References
Patch 5
- https://github.com/parse-community/parse-server/security/advisories/GHSA-w73w-g5xw-rwhf
- https://github.com/parse-community/parse-server/pull/10326
- https://github.com/parse-community/parse-server/pull/10327
- https://github.com/parse-community/parse-server/commit/661f160edac8daac0486bc94413cf9652876ab92
- https://github.com/parse-community/parse-server/commit/e7efbebba398ce6abe5b6b6fb9829c6ebe310fbf
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-2026-34224 · CVE Program
- CVE-2026-34224 · NVD
- FIRST EPSS
- GHSA-w73w-g5xw-rwhf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences