CVE-2026-34532Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js.
Updated under an hour ago ()
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It affects parseplatform parse-server. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.67 and 9.7.0-alpha.11, an attacker can bypass Cloud Function validator access controls by appending "prototype.constructor" to the function name in the URL. When a Cloud Function handler is declared using the function keyword and its validator is a plain object or arrow function, the trigger store traversal resolves the handler through its own prototype chain while the validator store fails to mirror this traversal, causing all access control enforcement to be skipped. This allows unauthenticated callers to invoke Cloud Functions that are meant to be protected by validators such as requireUser, requireMaster, or custom validation logic. This issue has been patched in versions 8.6.67 and 9.7.0-alpha.11.
- CVSS
- 9.1 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-863
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
parseplatform parse-server parseplatform:parse-server | before 8.6.67; from 9.0.0 before 9.7.0; 9.7.0; 9.7.0; 9.7.0; 9.7.0; 9.7.0; 9.7.0; and 4 more ranges | NVD |
References
- https://github.com/parse-community/parse-server/commit/4fc48cf28f22eea200d74d883505f485234a48d7patch
- https://github.com/parse-community/parse-server/commit/dc59e272665644083c5b7f6862d88ce1ef0b2674patch
- https://github.com/parse-community/parse-server/pull/10342issue-tracking, patch
- https://github.com/parse-community/parse-server/pull/10343issue-tracking, patch
- https://github.com/parse-community/parse-server/security/advisories/GHSA-vpj2-qq7w-5qq6mitigation, patch, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.