VDB
CVE-2021-29495
CVE-2021-29495
PUBLISHED
CVSS 5.9 MEDIUM
Nim stdlib httpClient does not validate peer certificates by default
Reported by github_m · Published May 7, 2021
Nim is a statically typed compiled systems programming language. In Nim standard library before 1.4.2, httpClient SSL/TLS certificate verification was disabled by default. Users can upgrade to version 1.4.2 to receive a patch or, as a workaround, set "verifyMode = CVerifyPeer" as documented.
Risk scores
CVSS 3.1
5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products
| Vendor | Product | Versions |
|---|---|---|
| nim-lang | security | < 1.4.2 |
| nim-lang | security | 0 |
Timeline
- May 7, 2021 CVE Published
- May 8, 2021 EPSS Score (30 in total, the first dated here)
- Aug 3, 2024 CVE Updated
- Aug 5, 2026 Coalition ESS Score
- Sep 22, 2026 Security Advisory (2 in total, the first dated here)
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