Get a Demo

Let's Patch It!

Book a short call with one our specialists, we'll walk you through how Endor Patches work, and ask you a few questions about your environment (like your primary programming languages and repository management). We'll also send you an email right after you fill out the form, feel free to reply with any questions you have in advance!

CVE

CVE-2026-29182

Parse Server: Cloud Hooks and Cloud Jobs bypass `readOnlyMasterKey` write restriction
Back to all
CVE

CVE-2026-29182

Parse Server: Cloud Hooks and Cloud Jobs bypass `readOnlyMasterKey` write restriction

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.4 and 9.4.1-alpha.3, Parse Server's readOnlyMasterKey option allows access with master-level read privileges but is documented to deny all write operations. However, some endpoints incorrectly accept the readOnlyMasterKey for mutating operations. This allows a caller who only holds the readOnlyMasterKey to create, modify, and delete Cloud Hooks and to start Cloud Jobs, which can be used for data exfiltration. Any Parse Server deployment that uses the readOnlyMasterKey option is affected. Note than an attacker needs to know the readOnlyMasterKey to exploit this vulnerability. This issue has been patched in versions 8.6.4 and 9.4.1-alpha.3.

Package Versions Affected

Package Version
patch Availability
No items found.

Automatically patch vulnerabilities without upgrading

Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request

CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.6
-
4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
7.2
-
3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Related Resources

No items found.

References

https://github.com/parse-community/parse-server/releases/tag/8.6.4, https://github.com/parse-community/parse-server/releases/tag/9.4.1-alpha.3, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29182.json, https://github.com/parse-community/parse-server/security/advisories/GHSA-vc89-5g3r-cmhh, https://nvd.nist.gov/vuln/detail/CVE-2026-29182

Severity

0

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
0
EPSS Probability
0.00023%
EPSS Percentile
0.06834%
Introduced Version
532a461d30a6ed4457839f2caf5f30d5abf51a55
Fix Available
3db8b8ebbfe4c84354cdc772187bea29dc204153

Fix Critical Vulnerabilities Instantly

Secure your app without upgrading.
Fix Without Upgrading