HIGHCVSS v3.1 7.5Vulnerability
CVE-2026-123487
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.
Properties
- Severity
- HIGH
- Nvd fetched at
- 2026-11-07T06:40:34.987550+00:00
- Cvss severity
- HIGH
- Cvss score
- 7.5
- Retrieved at
- 2026-11-07T06:41:39+00:00
- Score
- 7.5
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-123487
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- First seen by Signal
- 2026-11-06T18:25:35+00:00
- Name
- CVE-2026-123487
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published at
- 2026-11-06T15:17:17.947
- Last modified
- 2026-11-06T18:18:03.383
Related Entities (1)
HAS_WEAKNESS (1)
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