Parse Server before 8.6.115 and 9.0.0 before 9.10.7-alpha.1 validates user email address format with a regular expression whose run time grows quadratically with input length and that is applied without a length limit. An unauthenticated attacker who knows the application ID can send a sign-up request, or a logged-in user can update their own email, with a long crafted email address to block the Node.js event loop and deny service to all clients.
Metrics
Affected Vendors & Products
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
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References
History
Fri, 06 Nov 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Parse Server before 8.6.115 and 9.0.0 before 9.10.7-alpha.1 validates user email address format with a regular expression whose run time grows quadratically with input length and that is applied without a length limit. An unauthenticated attacker who knows the application ID can send a sign-up request, or a logged-in user can update their own email, with a long crafted email address to block the Node.js event loop and deny service to all clients. | |
| Title | Parse Server 9.0.0 before 9.10.7-alpha.1 ReDoS via Email Validation Regex | |
| First Time appeared |
Parseplatform
Parseplatform parse-server |
|
| Weaknesses | CWE-1333 | |
| CPEs | cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Parseplatform
Parseplatform parse-server |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-06T15:00:49.384Z
Reserved: 2026-11-06T00:44:37.658Z
Link: CVE-2026-123487
Vulnrichment
No data.
NVD
Status : Awaiting Analysis
Published: 2026-11-06T15:17:17.947
Modified: 2026-11-06T15:17:18.083
Link: CVE-2026-123487
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses