Medium

Keycloak Missing authentication for critical function

  • Disclosed: 12.03.2021
  • Updated: 11.10.2026 11:22

A flaw was found in Keycloak 12.0.0 where re-authentication does not occur while updating the password. This flaw allows an attacker to take over an account if they can obtain temporary, physical access to a user’s browser. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Affected software

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PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.keycloak:keycloak-core <= 12.0.4 no fix

References

CVSS score 6.8/10
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-306
Platform
Java / Kotlin (Maven)
Package
org.keycloak:keycloak-core
Disclosed
12.03.2021
Updated
11.10.2026 11:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-xf46-8vvp-4hxx - CC BY 4.0

Vulnerability history: org.keycloak:keycloak-core

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (49) in the archive
Total entries
49
First → latest
10.2018 02.2025
Without a fix
5
Exploited in attacks
0

Severity breakdown

  • Critical 3
  • High 14
  • Medium 31
  • Low 1

Disclosures per year

  1. 2018: 9
  2. 2019: 4
  3. 2020: 4
  4. 2021: 5
  5. 2022: 17
  6. 2023: 4
  7. 2024: 5
  8. 2025: 1
  9. 2026: 0
Severity:
  1. High · 6.5 CVE-2023-6841 < 24.0.0 24.0.0
  2. High · 8.8 CVE-2023-4918 >= 22.0.2, < 22.0.3 22.0.3
  3. Critical · 9.1 CVE-2019-14837 < 8.0.0 8.0.0
  4. High · 8.8 CVE-2020-27826 < 12.0.0 12.0.0
  5. High · 7.3 CVE-2021-20202 < 13.0.0 13.0.0
  6. High · 8.8 CVE-2020-1714 < 11.0.0 11.0.0
  7. High · 8.1 CVE-2020-14389 < 12.0.0 12.0.0
  8. High · 7.2 CVE-2019-10170 < 8.0.0 8.0.0
  9. Critical · 9.6 CVE-2021-20195 < 13.0.0 13.0.0
  10. Keycloak Missing authentication for critical function this entry
    Medium · 6.8 CVE-2021-20262 <= 12.0.4 no fix
  11. Critical · 9.8 CVE-2020-1731 < 8.0.2 8.0.2
  12. High · 8.1 CVE-2018-14637 < 4.6.0 4.6.0
  13. High · 7.5 CVE-2014-3651 < 1.0.3 1.0.3
  14. High · 7.5 CVE-2017-2646 < 2.5.5 2.5.5
  15. High · 8.1 CVE-2016-8609 < 2.3.0 2.3.0

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