CVE-2021-40900 describes a Regular Expression Denial of Service (ReDOS) vulnerability in regexfn v1.0.5, specifically impacting its email validation function. This high-severity vulnerability (CVSS 7.5) allows an unauthenticated attacker to cause a denial of service by submitting specially crafted invalid emails, requiring no user interaction. While the potential impact is high availability loss, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.0.5CPE matchmatch criteria | cpe:2.3:a:regexfn_project:regexfn:1.0.5:*:*:*:*:node.js:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.