CRITICAL

CVE-2020-27846

CVSS v3

9.8

CRITICAL

EPSS Score

4.9 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

github.com/crewjam/samlGoall versions · fixed in 0.4.3
grafanaBitnamiall versions · fixed in 6.7.5

Vendor advisories

CVE-2020-27846 Red Hat Product Security12 products fixed · 7 known affected
crewjam/saml: authentication bypass in saml authentication
servicemesh-grafana as a component of OpenShift Service Mesh 1 · servicemesh-grafana-prometheus as a component of OpenShift Service Mesh 1 · servicemesh-grafana.src as a component of OpenShift Service Mesh 1
RHSA-2021:1859 Red Hat Product Security9 products fixed
Red Hat Security Advisory: grafana security, bug fix, and enhancement update

Full record on NVD

Description

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.

Technical details

Published: 2020-12-21

Frequently asked questions

What is CVE-2020-27846?

Is CVE-2020-27846 actively exploited?

Active exploitation of CVE-2020-27846 has not been confirmed. Its EPSS score was 4.9% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-27846?

CVE-2020-27846 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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