CVE-2021-43307 describes an exponential Regular Expression Denial of Service (ReDoS) vulnerability affecting the semver-regex npm package. An attacker can trigger this by providing specially crafted input to the package's test() method. This vulnerability carries a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity, requiring no user interaction, and leading to high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.1.4CPE matchmatch criteria | cpe:2.3:a:semver-regex_project:semver-regex:*:*:*:*:*:*:*:* | ||
>= 4.0.0, < 4.0.3CPE matchmatch criteria | cpe:2.3:a:semver-regex_project:semver-regex:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/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.