CVE-2021-29495

Nim stdlib httpClient does not validate peer certificates by default

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.07%
Third-Party Advisory github.com
Affected: nim-lang security
Published at:
Updated at:

References

Link Tags
https://github.com/nim-lang/security/security/advisories/GHSA-9vqv-2jj9-7mqr third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-29495?
CVE-2021-29495 has been scored as a medium severity vulnerability.
How to fix CVE-2021-29495?
To fix CVE-2021-29495, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-29495 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-29495 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-29495?
CVE-2021-29495 affects nim-lang security.
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