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Vulnerabilities

Vulnerability · CVE-2020-27846

A signature verification vulnerability exists in crewjam/saml.

Published Dec 21, 2020 · catalog updated Jun 17, 2026 · A signature verification vulnerability

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2020-27846. EPSS is 4.93%. Act only if a listed version of A signature verification vulnerability is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A signature verification vulnerability).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
4.93%
Remediation
Version ranges on file
Affected products
cpe grafana/grafana · cpe redhat/openshift container platform · cpe saml project/saml

A signature verification vulnerability exists in crewjam/saml. This flaw allows an attacker to bypass SAML Authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe grafana/grafana< 6.7.5
  • cpe grafana/grafana< 7.2.3
  • cpe grafana/grafana< 7.3.6
  • cpe redhat/openshift container platform3.11
  • cpe redhat/openshift container platform4.0
  • cpe saml project/saml< 0.4.3

How to fix CVE-2020-27846

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2020-27846. EPSS is 4.93%. Act only if a listed version of A signature verification vulnerability is installed.

Which versions are affected?

Compare what you have installed with redhat/openshift container platform 3.11; redhat/openshift container platform 4.0; saml project/saml < 0.4.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-115. EPSS 4.93%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Grafana security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 21, 2020 · Monitored products — high

    Detected

    A signature verification vulnerability exists in crewjam/saml. This flaw allows an attacker to bypass SAML Authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

  2. Jun 17, 2026 · Monitored products — high

    Updated

    A signature verification vulnerability exists in crewjam/saml. This flaw allows an attacker to bypass SAML Authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Sources

  • CVE.orgVulnerability recordCVE-2020-27846

    Official CVE identifier

    cve.org
  • Monitored products — highVendor advisoryCVE-2020-27846

    A signature verification vulnerability exists in crewjam/saml. This flaw allows an attacker to bypass SAML Authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • Monitored products — highNov 2, 2026