CVE-2021-29495

MEDIUM

Nim < 1.4.2 - Improper Certificate Validation in HTTP Client

Title source: llm

Description

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.

References (1)

Core 1

Core References

Third Party Advisory x_refsource_confirm

https://github.com/nim-lang/security/security/advisories/GHSA-9vqv-2jj9-7mqr

Scores

CVSS v3 5.9

EPSS 0.0049

EPSS Percentile 38.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Details

CWE

CWE-295

Status published

Products (1)

nim-lang/nim < 1.4.2

Published May 07, 2021

Tracked Since Feb 18, 2026