Parse Server has a NoSQL injection via token type in password reset and email verification endpoints

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N · score source

EPSS

• CVE-2026-30941: 0.47% estimated exploitation activity in the next 30 days; percentile 40.97 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Impact A NoSQL injection vulnerability allows an unauthenticated attacker to inject MongoDB query operators via the token field in the password reset and email verification resend endpoints. The token value is passed to database queries without type validation and can be used to extract password reset and email verification tokens. Any Parse Server deployment using MongoDB with email verification or password reset enabled is affected. When emailVerifyTokenReuseIfValid is configured, the email verification token can be fully extracted and used to verify a user's email address without inbox access. Patches Patches The vulnerability is fixed by adding input type validation at the endpoint level. Workarounds There is no known workaround. References - GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-vgjh-hmwf-c588 - Fix Parse Server 9: https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.1 - Fix Parse Server 8:…

Published by the source

11 Mar 2026, 00:16 UTC

Last modified by the source

14 Mar 2026, 03:41 UTC

Source last checked

26 Oct 2026, 12:43 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-vgjh-hmwf-c588

2. Revision 2 · amended · 25 Oct 2026

   Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

3. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-vgjh-hmwf-c588

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# Patch Next advisory brief: CVE-2026-30941

Advisory: Parse Server has a NoSQL injection via token type in password reset and email verification endpoints
IDs: CVE-2026-30941, GHSA-vgjh-hmwf-c588
Record: https://patchnext.com/advisories/cve-2026-30941 (revision 3, source checked 26 Oct 2026, 12:43 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: parse-server 9.5.2-alpha.1, 8.6.14. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm parse-server: affected >= 9.0.0, < 9.5.2-alpha.1; < 8.6.14; fixed in 9.5.2-alpha.1, 8.6.14

## Suggested inspection (read-only)
- `npm ls parse-server --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on parse-server.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-vgjh-hmwf-c588 (OSV record GHSA-vgjh-hmwf-c588 lists affected ranges: npm parse-server >=9.0.0 =0 <8.6.14 (fixed))
- Verified: https://github.com/advisories/GHSA-vgjh-hmwf-c588 (GitHub-reviewed advisory GHSA-vgjh-hmwf-c588 lists affected ranges: npm parse-server >=9.0.0 =0 <8.6.14)

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