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 by default. In case of error it falls back to a non-TLS URL http://irclogs.nim-lang.org/packages.json. 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.
The product does not validate, or incorrectly validates, a certificate.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Nim | Nim-lang | * | 1.2.10 (excluding) |
| Nim | Nim-lang | 1.4.0 (including) | 1.4.4 (excluding) |