CVE-2021-21374
Nimble is a package manager for the Nim programming language. In Nim release versions before versions 1.2.10 and 1.4.4, "nimble refresh" fetches a list of Nimble packages over HTTPS without full verification of the SSL/TLS certificate due to the default setting of httpClient. An attacker able to perform MitM can deliver a modified package list containing malicious software packages. If the packages are installed and used the attack escalates to untrusted code execution.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.1
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L
- EPSS probability
- 0.31%
- CWE
- CWE-348, CWE-599, CWE-349
- Published
- 2021-03-26
- Last modified
- 2026-03-13
Affected products
- nim-lang security
- nim-lang security
Weakness type
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