CVE-2020-27846: GO-2021-0058 - Signature validation bypass due to XML processing error in github.com/crewjam/saml

CVE-2020-27846 · Severity: low · CVSS 3.1 · Published 2021-04-14

Signature validation bypass due to XML processing error in github.com/crewjam/saml

Technologies: github.com/crewjam/saml (Go). Vendors: Go.

Quick answers

Is CVE-2020-27846 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-27846 being exploited in the wild.
How severe is CVE-2020-27846?
Low severity, with a CVSS score of 3.1, published 14 April 2021.
Which products and versions are affected?
github.com/crewjam/saml (Go) SEMVER:introduced=0,fixed=0.4.3.
Is there a fix for CVE-2020-27846?
Yes. github.com/crewjam/saml (Go): upgrade to 0.4.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2020-27846?
Check whether you run github.com/crewjam/saml (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • github.com/crewjam/saml (Go): upgrade to 0.4.3 or later
    go get github.com/crewjam/saml@v0.4.3

Affected products

  • github.com/crewjam/saml (Go) SEMVER:introduced=0,fixed=0.4.3

Identifiers

  • CVE-2020-27846
  • GHSA-4hq8-gmxx-h6w9
  • GO-2021-0058

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