Vulnerabilities (CVE)

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Total 12 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-46872 1 Nim-lang 2 Nim, Nimforum 2023-01-23 N/A 6.1 MEDIUM
An issue was discovered in Nim before 1.6.2. The RST module of the Nim language stdlib, as used in NimForum and other products, permits the javascript: URI scheme and thus can lead to XSS in some applications. (Nim versions 1.6.2 and later are fixed; there may be backports of the fix to some earlier versions. NimForum 2.2.0 is fixed.)
CVE-2021-21372 1 Nim-lang 1 Nim 2022-10-24 6.8 MEDIUM 8.8 HIGH
Nimble is a package manager for the Nim programming language. In Nim release version before versions 1.2.10 and 1.4.4, Nimble doCmd is used in different places and can be leveraged to execute arbitrary commands. An attacker can craft a malicious entry in the packages.json package list to trigger code execution.
CVE-2022-23602 1 Nim-lang 2 Docutils, Nimforum 2022-02-04 5.5 MEDIUM 8.1 HIGH
Nimforum is a lightweight alternative to Discourse written in Nim. In versions prior to 2.2.0 any forum user can create a new thread/post with an include referencing a file local to the host operating system. Nimforum will render the file if able. This can also be done silently by using NimForum's post "preview" endpoint. Even if NimForum is running as a non-critical user, the forum.json secrets can be stolen. Version 2.2.0 of NimForum includes patches for this vulnerability. Users are advised to upgrade as soon as is possible. There are no known workarounds for this issue.
CVE-2021-41259 1 Nim-lang 1 Nim 2021-11-17 7.5 HIGH 9.8 CRITICAL
Nim is a systems programming language with a focus on efficiency, expressiveness, and elegance. In affected versions the uri.parseUri function which may be used to validate URIs accepts null bytes in the input URI. This behavior could be used to bypass URI validation. For example: parseUri("http://localhost\0hello").hostname is set to "localhost\0hello". Additionally, httpclient.getContent accepts null bytes in the input URL and ignores any data after the first null byte. Example: getContent("http://localhost\0hello") makes a request to localhost:80. An attacker can use a null bytes to bypass the check and mount a SSRF attack.
CVE-2020-23171 1 Nim-lang 1 Nim-lang 2021-08-17 4.3 MEDIUM 5.5 MEDIUM
A vulnerability in all versions of Nim-lang allows unauthenticated attackers to write files to arbitrary directories via a crafted zip file with dot-slash characters included in the name of the crafted file.
CVE-2021-29495 1 Nim-lang 1 Nim 2021-05-14 5.0 MEDIUM 7.5 HIGH
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.
CVE-2021-21373 1 Nim-lang 1 Nim 2021-03-31 4.3 MEDIUM 5.9 MEDIUM
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.
CVE-2021-21374 1 Nim-lang 1 Nim 2021-03-30 6.8 MEDIUM 8.1 HIGH
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.
CVE-2020-15690 1 Nim-lang 1 Nim 2021-02-09 7.5 HIGH 9.8 CRITICAL
In Nim before 1.2.6, the standard library asyncftpclient lacks a check for whether a message contains a newline character.
CVE-2020-15692 1 Nim-lang 1 Nim 2021-02-08 10.0 HIGH 9.8 CRITICAL
In Nim 1.2.4, the standard library browsers mishandles the URL argument to browsers.openDefaultBrowser. This argument can be a local file path that will be opened in the default explorer. An attacker can pass one argument to the underlying open command to execute arbitrary registered system commands.
CVE-2020-15693 1 Nim-lang 1 Nim 2021-02-08 6.4 MEDIUM 6.5 MEDIUM
In Nim 1.2.4, the standard library httpClient is vulnerable to a CR-LF injection in the target URL. An injection is possible if the attacker controls any part of the URL provided in a call (such as httpClient.get or httpClient.post), the User-Agent header value, or custom HTTP header names or values.
CVE-2020-15694 1 Nim-lang 1 Nim 2021-02-08 5.0 MEDIUM 7.5 HIGH
In Nim 1.2.4, the standard library httpClient fails to properly validate the server response. For example, httpClient.get().contentLength() does not raise any error if a malicious server provides a negative Content-Length.