CVE-2023-36475
Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 5.5.2 and 6.2.1, an attacker can use a prototype pollution sink to trigger a remote code execution through the MongoDB BSON parser. A patch is available in versions 5.5.2 and 6.2.1.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 5.5.2 and 6.2.1, an attacker can use a prototype pollution sink to trigger a remote code execution through the MongoDB BSON parser. A patch is available in versions 5.5.2 and 6.2.1.
- Record
CVE-2023-36475- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
EUVDEUVD-2023-1678
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 5.5.2 and 6.2.1, an attacker can use a prototype pollution sink to trigger a remote code execution through the MongoDB BSON parser. A patch is available in versions 5.5.2 and 6.2.1.
- Record
EUVD-2023-1678- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-462x-c3jw-7vr6
Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution
Impact
An attacker can use this prototype pollution sink to trigger a remote code execution through the MongoDB BSON parser.
Patches
Prevent prototype pollution in MongoDB database adapter.
Workarounds
Disable remote code execution through the MongoDB BSON parser.
Credits
- Discovered by hir0ot working with Trend Micro Zero Day Initiative
- Fixed by dbythy
- Reviewed by mtrezza
References
- Record
GHSA-462x-c3jw-7vr6- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
NVD
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 5.5.2 and 6.2.1, an attacker can use a prototype pollution sink to trigger a remote code execution through the MongoDB BSON parser. A patch is available in versions 5.5.2 and 6.2.1.
- Record
CVE-2023-36475- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSV
Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 5.5.2 and 6.2.1, an attacker can use a prototype pollution sink to trigger a remote code execution through the MongoDB BSON parser. A patch is available in versions 5.5.2 and 6.2.1.
- Record
CVE-2023-36475- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSVGHSA-462x-c3jw-7vr6
Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution
Impact
An attacker can use this prototype pollution sink to trigger a remote code execution through the MongoDB BSON parser.
Patches
Prevent prototype pollution in MongoDB database adapter.
Workarounds
Disable remote code execution through the MongoDB BSON parser.
Credits
- Discovered by hir0ot working with Trend Micro Zero Day Initiative
- Fixed by dbythy
- Reviewed by mtrezza
References
- Record
GHSA-462x-c3jw-7vr6- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSVBIT-parse-2023-36475 No score
Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 5.5.2 and 6.2.1, an attacker can use a prototype pollution sink to trigger a remote code execution through the MongoDB BSON parser. A patch is available in versions 5.5.2 and 6.2.1.
- Record
BIT-parse-2023-36475- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
parse-servernpm |
before 5.5.2 | 5.5.2 |
parse-servernpm |
6.0.0 up to 6.2.1 | 6.2.1 |
parseBitnami |
before 5.5.2, 6.0.0 up to 6.2.1 | 5.5.26.2.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-36475 is a critical vulnerability (CVSS 9.8) in Parse-community Parse-server, published June 28, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.20%, the 88th percentile. Fixed in parse-server 5.5.2.
References
github.com/parse-community/parse-server/security/advisories/GHSA-462x-c3jw-7vr6