CVE-2026-123487: Parse Server 9.0.0 before 9.10.7-alpha.1 ReDoS via Email Validation Regex
parse-community · parse-server
Vendor fix available · Affected: parse-community parse-server · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 32% of scored CVEs
DescriptionCVE.org
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.
Affected products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- parse-community · parse-serverfrom 9.0.0 before 9.10.7-alpha.1
- parse-community · parse-serverbefore 8.6.115
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- parse-community
- Published
- November 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-123487 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.