CVE-2026-33429
MEDIUM EPSS 23.3%
Published Mar 24, 20263mo ago · Modified Jun 17, 20262w ago
6.3 CVSS 4.0
Published Mar 24, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago
Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.54 and 9.6.0-alpha.43, an attacker can subscribe to LiveQuery with a watch parameter targeting a protected field. Although the protected field value is properly stripped from event payloads, the presence or absence of update events reveals whether the protected field changed, creating a binary oracle. For boolean protected fields, the timing of change events is equivalent to knowing the field value. This issue has been patched in versions 8.6.54 and 9.6.0-alpha.43.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/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 Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
23.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-203
Affected Products 44
| Vendor | Product | Version | Range |
|---|---|---|---|
| parseplatform | parse-server | * | <8.6.54 |
| parseplatform | parse-server | * | ≥9.0.0 – <9.6.0 |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
| parseplatform | parse-server | 9.6.0 | any |
References 5
- github.com https://github.com/parse-community/parse-server/commit/0c0a0a5a37ca821d2553119f2cb3be35322eda4b
- github.com https://github.com/parse-community/parse-server/commit/c62eacaf38de86913f09240583448360b1cc8e67
- github.com https://github.com/parse-community/parse-server/pull/10253
- github.com https://github.com/parse-community/parse-server/pull/10254
- github.com https://github.com/parse-community/parse-server/security/advisories/GHSA-qpc3-fg4j-8hgm
Remediation
- github.com https://github.com/parse-community/parse-server/commit/0c0a0a5a37ca821d2553119f2cb3be35322eda4b
- github.com https://github.com/parse-community/parse-server/commit/c62eacaf38de86913f09240583448360b1cc8e67