Injection Affecting std/net package, versions <1.15.13>=1.16.0-0 <1.16.5
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-STDNET-14550534
- published6 Jan 2026
- disclosed17 Feb 2022
- creditPhilipp Jeitner, Haya Shulman from Fraunhofer SIT
Introduced: 17 Feb 2022
CVE-2021-33195 (opens in a new tab)How to fix?
Upgrade std/net to version 1.15.13, 1.16.5 or higher.
Overview
std/net is a Go standard library package std/net
Affected versions of this package are vulnerable to Injection.
Go Vulnerability Report:
The LookupCNAME, LookupSRV, LookupMX, LookupNS, and LookupAddr functions and their respective methods on the Resolver type may return arbitrary values retrieved from DNS which do not follow the established RFC 1035 rules for domain names. If these names are used without further sanitization, for instance unsafely included in HTML, they may allow for injection of unexpected content. Note that LookupTXT may still return arbitrary values that could require sanitization before further use.