Parse Server: Account takeover via operator injection in authentication data identifier
Priority MEDIUM 49CWE-943Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · 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 9.6.0-alpha.12 and 8.6.38, an unauthenticated attacker can take over any user account that was created with an authentication provider that does not validate the format of the user identifier (e.g. anonymous authentication). By sending a crafted login request, the attacker can cause the server to perform a pattern-matching query instead of an exact-match lookup, allowing the attacker to match an existing user and obtain a valid session token for that user's account. Both MongoDB and PostgreSQL database backends are affected. Any Parse Server deployment that allows anonymous authentication (enabled by default) is vulnerable. This vulnerability is fixed in 9.6.0-alpha.12 and 8.6.38.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00682 52nd percentileScored 2026-11-08
Fix Fixed parse-server (parse-community): 9.6.0-alpha.12, 8.6.38parse-server (npm): 9.6.0-alpha.12, 8.6.38
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
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 | 9.0.0 to before 9.6.0-alpha.12; before 8.6.38 | 9.6.0-alpha.12, 8.6.38 | Patch available | CNA |
| — | parse-server (npm) | 9.0.0 to before 9.6.0-alpha.12 | 9.6.0-alpha.12 | Patch available | GHSA-5fw2-8jcv-xh87 |
| — | parse-server (npm) | before 8.6.38 | 8.6.38 | Patch available | GHSA-5fw2-8jcv-xh87 |
- parse-server Vendorparse-community Affected 9.0.0 to before 9.6.0-alpha.12; before 8.6.38 Fixed in 9.6.0-alpha.12, 8.6.38 Patch available CNA
- parse-server (npm) Vendor— Affected 9.0.0 to before 9.6.0-alpha.12 Fixed in 9.6.0-alpha.12 Patch available GHSA-5fw2-8jcv-xh87
- parse-server (npm) Vendor— Affected before 8.6.38 Fixed in 8.6.38 Patch available GHSA-5fw2-8jcv-xh87
CPE configurations NVD · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:* | before 8.6.38; 9.0.0 to before 9.6.0 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha1:*:*:*:node.js:*:* | 9.6.0 alpha1 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha10:*:*:*:node.js:*:* | 9.6.0 alpha10 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha11:*:*:*:node.js:*:* | 9.6.0 alpha11 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha2:*:*:*:node.js:*:* | 9.6.0 alpha2 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha3:*:*:*:node.js:*:* | 9.6.0 alpha3 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha4:*:*:*:node.js:*:* | 9.6.0 alpha4 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha5:*:*:*:node.js:*:* | 9.6.0 alpha5 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha6:*:*:*:node.js:*:* | 9.6.0 alpha6 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha7:*:*:*:node.js:*:* | 9.6.0 alpha7 | Vulnerable | parse-community |
- cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:* Versions before 8.6.38; 9.0.0 to before 9.6.0 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha1:*:*:*:node.js:*:* Versions 9.6.0 alpha1 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha10:*:*:*:node.js:*:* Versions 9.6.0 alpha10 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha11:*:*:*:node.js:*:* Versions 9.6.0 alpha11 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha2:*:*:*:node.js:*:* Versions 9.6.0 alpha2 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha3:*:*:*:node.js:*:* Versions 9.6.0 alpha3 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha4:*:*:*:node.js:*:* Versions 9.6.0 alpha4 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha5:*:*:*:node.js:*:* Versions 9.6.0 alpha5 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha6:*:*:*:node.js:*:* Versions 9.6.0 alpha6 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha7:*:*:*:node.js:*:* Versions 9.6.0 alpha7 Vulnerable ·parse-community
Show 2 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha8:*:*:*:node.js:*:* | 9.6.0 alpha8 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha9:*:*:*:node.js:*:* | 9.6.0 alpha9 | Vulnerable | parse-community |
- cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha8:*:*:*:node.js:*:* Versions 9.6.0 alpha8 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha9:*:*:*:node.js:*:* Versions 9.6.0 alpha9 Vulnerable ·parse-community
Remediation
- Fix · CNA parse-server (parse-community) Fixed in 9.6.0-alpha.12, 8.6.38
- Fix · GHSA-5fw2-8jcv-xh87 parse-server (npm) Fixed in 9.6.0-alpha.12 Advisory →
- Fix · GHSA-5fw2-8jcv-xh87 parse-server (npm) Fixed in 8.6.38 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-32248
- 2026-10-03 Alias added: GHSA-5fw2-8jcv-xh87
- 2026-10-25 EPSS moved to the below the 50th percentile
- 2026-10-28 EPSS moved to the 50th–90th percentile
References
Advisory 2
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-2026-32248 · CVE Program
- CVE-2026-32248 · NVD
- FIRST EPSS
- GHSA-5fw2-8jcv-xh87 · 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