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OpenAdvisories
Medium USN-8796-1 3 CVEs

openjdk-21 vulnerabilities

Published Sep 21, 2026 · Updated Sep 22, 2026

Ecosystem: Ubuntu

Summary

Kai Aizen discovered that the Networking component of OpenJDK 21 did not
correctly handle user authentication. A remote attacker could possibly use
this issue to leak sensitive information. (CVE-2026-61308)

It was discovered that the JSSE component of OpenJDK 21 did not correctly
handle user authentication. A remote attacker could possibly use this issue
to cause a denial of service. (CVE-2026-70907)

It was discovered that the Security component of OpenJDK 21 did not
correctly handle user authentication. A remote attacker could possibly use
this issue to leak sensitive information. (CVE-2026-60589)

Fixed packages 4

ReleasePackageFixed in
Ubuntu · 22.04 LTS 22.04:LTS openjdk-21 21.0.12.1+1-1~22.04.4
Ubuntu · 24.04 LTS 24.04:LTS openjdk-21 21.0.12.1+1-1~24.04.4
Ubuntu · 26.04 LTS 26.04:LTS openjdk-21 21.0.12.1+1-1~26.04.4
Ubuntu · Pro 20.04 LTS Pro:20.04:LTS openjdk-21 21.0.12.1+1-1~20.04.4

Vulnerabilities 3

References

  • report
    https://ubuntu.com/security/CVE-2026-60589
  • report
    https://ubuntu.com/security/CVE-2026-61308
  • report
    https://ubuntu.com/security/CVE-2026-70907