CVE-2026-29182
published 2026-03-06CVE-2026-29182: 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…
PriorityP348high7.2CVSS 3.1
AVNACLPRHUINSUCHIHAH
EPSS
0.38%
29.8th percentile
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.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| parse-community | parse-server | < 8.6.4 | 8.6.4 |
| parse-community | parse-server | < 9.4.1-alpha.3 | 9.4.1-alpha.3 |
| parse-community | parse-server | >= 0 < 8.6.4 | 8.6.4 |
| parse-community | parse-server | >= 9.0.0 < 9.4.1-alpha.3 | 9.4.1-alpha.3 |
| parseplatform | parse-server | < 8.6.4 | 8.6.4 |
| parseplatform | parse-server | — | — |
| parseplatform | parse-server | 9.0.0 – 9.4.0 | — |
CVSS provenance
nvdv3.17.2HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
nvdv4.08.6HIGHCVSS: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
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OSV
Parse Server's Cloud Hooks and Cloud Jobs bypass `readOnlyMasterKey` write restriction
osv·2026-03-05
CVE-2026-29182 [HIGH] Parse Server's Cloud Hooks and Cloud Jobs bypass `readOnlyMasterKey` write restriction
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
GHSA
Parse Server's Cloud Hooks and Cloud Jobs bypass `readOnlyMasterKey` write restriction
ghsa·2026-03-05
CVE-2026-29182 [HIGH] CWE-863 Parse Server's Cloud Hooks and Cloud Jobs bypass `readOnlyMasterKey` write restriction
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
No detection rules found.
No public exploits indexed.
2026-03-06
Published