CVE-2022-41879
Parse Server subject to Prototype pollution via Cloud Code Webhooks
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. In versions prior to 5.3.3 or 4.10.20, a compromised Parse Server Cloud Code Webhook target endpoint allows an attacker to use prototype pollution to bypass the Parse Server requestKeywordDenylist option. This issue has been patched in versions 5.3.3 and 4.10.20. There are no known workarounds.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- 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 subject to Prototype pollution via Cloud Code Webhooks
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. In versions prior to 5.3.3 or 4.10.20, a compromised Parse Server Cloud Code Webhook target endpoint allows an attacker to use prototype pollution to bypass the Parse Server requestKeywordDenylist option. This issue has been patched in versions 5.3.3 and 4.10.20. There are no known workarounds.
- Record
CVE-2022-41879- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
EUVDEUVD-2022-7291
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. In versions prior to 5.3.3 or 4.10.20, a compromised Parse Server Cloud Code Webhook target endpoint allows an attacker to use prototype pollution to bypass the Parse Server requestKeywordDenylist option. This issue has been patched in versions 5.3.3 and 4.10.20. There are no known workarounds.
- Record
EUVD-2022-7291- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-93vw-8fm5-p2jf
Parse Server is vulnerable to Prototype Pollution via Cloud Code Webhooks
Impact
A compromised Parse Server Cloud Code Webhook target endpoint allows an attacker to use prototype pollution to bypass the Parse Server requestKeywordDenylist option.
Patches
Improved keyword detection.
Workarounds
None.
Collaborators
Mikhail Shcherbakov, Cristian-Alexandru Staicu and Musard Balliu working with Trend Micro Zero Day Initiative
References
- Record
GHSA-93vw-8fm5-p2jf- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/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. In versions prior to 5.3.3 or 4.10.20, a compromised Parse Server Cloud Code Webhook target endpoint allows an attacker to use prototype pollution to bypass the Parse Server requestKeywordDenylist option. This issue has been patched in versions 5.3.3 and 4.10.20. There are no known workarounds.
- Record
CVE-2022-41879- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - 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 subject to Prototype pollution via Cloud Code Webhooks
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. In versions prior to 5.3.3 or 4.10.20, a compromised Parse Server Cloud Code Webhook target endpoint allows an attacker to use prototype pollution to bypass the Parse Server requestKeywordDenylist option. This issue has been patched in versions 5.3.3 and 4.10.20. There are no known workarounds.
- Record
CVE-2022-41879- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSVGHSA-93vw-8fm5-p2jf
Parse Server is vulnerable to Prototype Pollution via Cloud Code Webhooks
Impact
A compromised Parse Server Cloud Code Webhook target endpoint allows an attacker to use prototype pollution to bypass the Parse Server requestKeywordDenylist option.
Patches
Improved keyword detection.
Workarounds
None.
Collaborators
Mikhail Shcherbakov, Cristian-Alexandru Staicu and Musard Balliu working with Trend Micro Zero Day Initiative
References
- Record
GHSA-93vw-8fm5-p2jf- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSVBIT-parse-2022-41879 No score
Parse Server subject to Prototype pollution via Cloud Code Webhooks
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. In versions prior to 5.3.3 or 4.10.20, a compromised Parse Server Cloud Code Webhook target endpoint allows an attacker to use prototype pollution to bypass the Parse Server requestKeywordDenylist option. This issue has been patched in versions 5.3.3 and 4.10.20. There are no known workarounds.
- Record
BIT-parse-2022-41879- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
parse-servernpm |
before 4.10.20 | 4.10.20 |
parse-servernpm |
5.0.0 up to 5.3.3 | 5.3.3 |
parseBitnami |
before 4.10.20, 5.0.0 up to 5.3.3 | 4.10.205.3.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-41879 is a high vulnerability (CVSS 7.2) in Parse-community Parse-server, published November 10, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.98%, the 62nd percentile. Fixed in parse-server 4.10.20.
References
github.com/parse-community/parse-server/security/advisories/GHSA-93vw-8fm5-p2jf