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OpenAdvisories
High USN-8677-1 9 CVEs

openjdk-21 vulnerabilities

Published Aug 25, 2026 · Updated Aug 26, 2026

Ecosystem: Ubuntu

Summary

It was discovered that the JSSE component of OpenJDK 21 did not correctly
authenticate users. A remote attacker could possibly use this issue to read
or modify sensitive data. (CVE-2026-46968)

It was discovered that the JSSE component of OpenJDK 21 did not correctly
authorize users. A remote attacker could possibly use this issue to cause a
denial of service. (CVE-2026-46917)

It was discovered that the ImageIO component of OpenJDK 21 did not
correctly authorize users. A remote attacker could possibly use this issue
to read or modify sensitive data. (CVE-2026-47010)

It was discovered that the 2D component of OpenJDK 21 did not correctly
authorize users. A remote attacker could possibly use this issue to cause a
denial of service. (CVE-2026-47021, CVE-2026-47059)

It was discovered that the Libraries component of OpenJDK 21 did not
correctly authorize users. A remote attacker could possibly use this issue
to cause a denial of service. (CVE-2026-47027)

It was discovered that the Security component of OpenJDK 21 did not
correctly authenticate users. A remote attacker could possibly use this
issue to read or modify sensitive data. (CVE-2026-60147)

It was discovered that the Libraries component of OpenJDK 21 did not
correctly authenticate users. A remote attacker could possibly use this
issue to read or modify sensitive data. (CVE-2026-47063)

It was discovered that the 2D (Little CMS) component of OpenJDK 21 did not
correctly handle certain integer arithmetic. An attacker could possibly use
this issue to cause a denial of service. (CVE-2026-41254)

In addition to security fixes, the updated packages contain bug fixes, new
features, and possibly incompatible changes.

Please see the following for more information:
https://openjdk.org/groups/vulnerability/advisories/2026-07-21

Fixed packages 4

ReleasePackageFixed in
Ubuntu · 22.04 LTS 22.04:LTS openjdk-21 21.0.12+8-1~22.04
Ubuntu · 24.04 LTS 24.04:LTS openjdk-21 21.0.12+8-1~24.04
Ubuntu · 26.04 LTS 26.04:LTS openjdk-21 21.0.12+8-1~26.04
Ubuntu · Pro 20.04 LTS Pro:20.04:LTS openjdk-21 21.0.12+8-1~20.04

Vulnerabilities 9

References

  • report
    https://ubuntu.com/security/CVE-2026-41254
  • report
    https://ubuntu.com/security/CVE-2026-46917
  • report
    https://ubuntu.com/security/CVE-2026-46968
  • report
    https://ubuntu.com/security/CVE-2026-47010
  • report
    https://ubuntu.com/security/CVE-2026-47021
  • report
    https://ubuntu.com/security/CVE-2026-47027
  • report
    https://ubuntu.com/security/CVE-2026-47059
  • report
    https://ubuntu.com/security/CVE-2026-47063
  • report
    https://ubuntu.com/security/CVE-2026-60147