CVE-2020-29511

Description

The encoding/xml package in Go (all versions) does not correctly preserve the semantics of element namespace prefixes during tokenization round-trips, which allows an attacker to craft inputs that behave in conflicting ways during different stages of processing in affected downstream applications.

Remediation

Workaround:

  • Untrusted markup in affected applications can be validated using the github.com/mattermost/xml-roundtrip-validator module.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.35%
Third-Party Advisory github.com Third-Party Advisory netapp.com
Affected: Golang Go
Published at:
Updated at:

References

Link Tags
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md third party advisory
https://security.netapp.com/advisory/ntap-20210129-0006/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-29511?
CVE-2020-29511 has been scored as a critical severity vulnerability.
How to fix CVE-2020-29511?
As a workaround for remediating CVE-2020-29511: Untrusted markup in affected applications can be validated using the github.com/mattermost/xml-roundtrip-validator module.
Is CVE-2020-29511 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-29511 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-29511?
CVE-2020-29511 affects Golang Go.
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