CVE-2021-29495 is a high-severity vulnerability affecting the Nim programming language's standard library prior to version 1.4.2, where httpClient SSL/TLS certificate verification was disabled by default. This flaw (CWE-295) allows for man-in-the-middle attacks, potentially leading to data interception or modification due to a lack of proper certificate validation. While the CVSS score is 7.5 (High), indicating a critical security risk, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability. Users are advised to upgrade to Nim 1.4.2 or implement the documented workaround of setting "verifyMode = CVerifyPeer".
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.4.2CPE 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:U/C:N/I:H/A:N
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.