CVE-2020-15693
mediumpriority · track · 27EPSS 0.021 · 82 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
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affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
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references (14)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2021/02/04/2cnnvd
- https://consensys.net/diligence/vulnerabilities/nim-cnnvd
- https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/cnnvd
- https://nim-lang.org/blog/2020/07/30/versions-126-and-108-released.htmlcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-15693cnnvd
- https://vigilance.fr/vulnerability/Nim-three-vulnerabilities-39107cnnvd
- http://www.openwall.com/lists/oss-security/2021/02/04/2enisa_euvd
- https://consensys.net/diligence/vulnerabilities/nim-httpclient-header-crlf-injection/enisa_euvd
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