CVE-2021-33195

HighCVSS 7.3/10Last modified Jun 17, 2026

Description

Go before 1.15.13 and 1.16.x before 1.16.5 has functions for DNS lookups that do not validate replies from DNS servers, and thus a return value may contain an unsafe injection (e.g., XSS) that does not conform to the RFC1035 format.

Metrics

CVSS 3.1 7.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-74

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://groups.google.com/g/golang-announceThird Party Advisory
https://groups.google.com/g/golang-announce/c/RgCMkAEQjSIExploit, Patch, Third Party Advisory
https://security.gentoo.org/glsa/202208-02Third Party Advisory
https://security.netapp.com/advisory/ntap-20210902-0005/Third Party Advisory
https://groups.google.com/g/golang-announceThird Party Advisory
https://groups.google.com/g/golang-announce/c/RgCMkAEQjSIExploit, Patch, Third Party Advisory
https://security.gentoo.org/glsa/202208-02Third Party Advisory
https://security.netapp.com/advisory/ntap-20210902-0005/Third Party Advisory

Timeline

Published: Aug 2, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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