CVE-2021-21374 affects Nimble, the package manager for the Nim programming language, in versions prior to 1.2.10 and 1.4.4. The vulnerability stems from insufficient SSL/TLS certificate verification during "nimble refresh" operations, allowing a Man-in-the-Middle (MitM) attacker to deliver malicious package lists. This high-severity vulnerability (CVSS 8.1) could lead to untrusted code execution if users install and utilize the compromised packages. 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 |
|---|---|---|---|
< 1.2.10CPE matchmatch criteria | cpe:2.3:a:nim-lang:nim:*:*:*:*:*:*:*:* | ||
>= 1.4.0, < 1.4.4CPE matchmatch criteria | cpe:2.3:a:nim-lang:nim:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 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.