CVE-2021-29495

Published: May 7, 2021Modified: Jun 17, 2026

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: NVD

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.

Affected (1)

Products: Nim Lang: Nim

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Nim Lang Nim	Before 1.4.2

Related CWEs

Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

References (2)

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

Source: security-advisories@github.com

Third Party Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.