CVE-2020-29509

A flaw was found in go. Encoding and decoding of XML attributes could lead to changes in the observed integrity. An attacker could use this flaw to trick applications which rely on attribute integrity for security decisions to make those decisions incorrectly. Known vulnerability use-cases are SAML and XML-DSig.

Mitigation

While there is unlikely to be any fix for this issue Go's encoding/xml library affected users can workaround the vulnerability by using Mattermost's xml-roundtrip-validator [1].

[1] <https://github.com/mattermost/xml-roundtrip-validator&gt;