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's Cloud Hooks and Cloud Jobs bypass `readOnlyMasterKey` write restriction
Back to all
CVE

CVE-2026-29182

Parse Server's Cloud Hooks and Cloud Jobs bypass `readOnlyMasterKey` write restriction

Impact

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.

Patches

The fix adds authorization checks, rejecting mutating requests made with the readOnlyMasterKey.

Workarounds

There is no known workaround other than upgrading. If upgrading is not immediately possible, ensure the readOnlyMasterKey value is not shared with untrusted parties.

Resources

  • GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-vc89-5g3r-cmhh
  • Fixed in Parse Server 9.4.1-alpha.3: https://github.com/parse-community/parse-server/releases/tag/9.4.1-alpha.3
  • Fixed in Parse Server 8.6.4: https://github.com/parse-community/parse-server/releases/tag/8.6.4

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/security/advisories/GHSA-vc89-5g3r-cmhh, https://nvd.nist.gov/vuln/detail/CVE-2026-29182, https://github.com/parse-community/parse-server, 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

Severity

7.2

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.2
EPSS Probability
0.00023%
EPSS Percentile
0.06737%
Introduced Version
9.0.0,9.0.0-alpha.1,2.7.0,2.2.19,2.1.4
Fix Available
9.4.1-alpha.3,8.6.4

Fix Critical Vulnerabilities Instantly

Secure your app without upgrading.
Fix Without Upgrading