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Critical USN-9015-1 39 CVEs

openjdk-21 vulnerabilities

Published Nov 9, 2026 · Updated Nov 11, 2026

Ecosystem: Ubuntu

Summary

It was discovered that the Security component of OpenJDK 21 did not
correctly authenticate users. A remote attacker could possibly use this
issue to modify sensitive data. (CVE-2026-83374)

It was discovered that the JSSE component of OpenJDK 21 did not correctly
authorize users. A remote attacker could possibly use this issue to modify
sensitive data. (CVE-2026-83376)

It was discovered that the Compiler component of OpenJDK 21 did not
correctly authorize users. An unauthenticated remote attacker could
possibly use this issue to read or modify sensitive data. (CVE-2026-83378)

It was discovered that the JAAS component of OpenJDK 21 did not correctly
authorize users. A remote attacker could possibly use this issue to read
sensitive data. (CVE-2026-83380)

It was discovered that the Security component of OpenJDK 21 did not
correctly authorize users. A remote attacker could possibly use this issue
to read or modify sensitive data. (CVE-2026-83381)

It was discovered that the JDBC component of OpenJDK 21 did not correctly
authenticate users. A remote attacker could possibly use this issue to read
sensitive data. (CVE-2026-83387)

It was discovered that the Networking component of OpenJDK 21 did not
correctly authorize users. A remote attacker could possibly use this issue
to cause a denial of service or modify sensitive data. (CVE-2026-83395)

It was discovered that the JAXP component of OpenJDK 21 did not correctly
authorize users. A remote attacker could possibly use this issue to cause a
denial of service. (CVE-2026-83400)

It was discovered that the JAXP component of OpenJDK 21 did not correctly
authenticate users. A remote attacker could possibly use this issue to read
sensitive data. (CVE-2026-87290)

It was discovered that the Networking component of OpenJDK 21 did not
correctly authorize users. An unauthenticated remote attacker could
possibly use this issue to read sensitive data. (CVE-2026-87291)

It was discovered that the Networking component of OpenJDK 21 did not
correctly authorize users. A remote attacker could possibly use this issue
to modify sensitive data. (CVE-2026-87292)

It was discovered that the Security component of OpenJDK 21 did not
correctly authorize users. A remote attacker could possibly use this issue
to read or modify sensitive data. (CVE-2026-87294)

It was discovered that the JAXP component of OpenJDK 21 did not correctly
authorize users. A remote attacker could possibly use this issue to modify
sensitive data. (CVE-2026-87367)

It was discovered that the Networking component of OpenJDK 21 did not
correctly authorize users. A remote attacker could possibly use this issue
to modify sensitive data. (CVE-2026-91332)

It was discovered that the Security component of OpenJDK 21 did not
correctly authorize users. An unauthenticated remote attacker could
possibly use this issue to read or modify sensitive data. (CVE-2026-91333)

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 sensitive data. (CVE-2026-91334)

It was discovered that the AWT component of OpenJDK 21 did not correctly
authorize users. A remote attacker could possibly use this issue to read
sensitive data. (CVE-2026-91335)

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-2026-91373)

It was discovered that the Serviceability component of OpenJDK 21 did not
correctly authorize users. A remote attacker could possibly use this issue
to read or modify sensitive data. (CVE-2026-91374)

It was discovered that the Libraries component of OpenJDK 21 did not
correctly authenticate users. A local attacker could possibly use this
issue to modify sensitive data. (CVE-2026-91375)

It was discovered that the JDK tools component of OpenJDK 21 did not
correctly authenticate users. A local attacker could possibly use this
issue to modify sensitive data. (CVE-2026-91379)

It was discovered that the Utility component of OpenJDK 21 did not
correctly authorize users. A local attacker could possibly use this issue
to read or modify sensitive data. (CVE-2026-91380)

It was discovered that the Networking component of OpenJDK 21 did not
correctly authenticate users. A remote attacker could possibly use this
issue to read sensitive data. (CVE-2026-91394)

It was discovered that the Serviceability component of OpenJDK 21 did not
correctly authorize users. A local attacker could possibly use this issue
to cause a denial of service or modify sensitive data. (CVE-2026-91397)

It was discovered that the Networking component of OpenJDK 21 did not
correctly authenticate users. A remote attacker could possibly use this
issue to modify sensitive data. (CVE-2026-91398)

It was discovered that the Sound component of OpenJDK 21 did not correctly
authorize users. A remote attacker could possibly use this issue to cause a
denial of service. (CVE-2026-91400)

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-2026-91403)

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-2026-91410)

It was discovered that the 2D component of OpenJDK 21 did not correctly
authenticate users. A remote attacker could possibly use this issue to
cause a denial of service or read or modify sensitive data.
(CVE-2026-91415)

It was discovered that the ImageIO component of OpenJDK 21 did not
correctly authorize users. A remote attacker could possibly use this issue
to cause a denial of service. (CVE-2026-91418)

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

Fixed packages 5

ReleasePackageFixed in
Ubuntu · 22.04 LTS 22.04:LTS openjdk-21 21.0.13.0.3+1-1~22.04.1
Ubuntu · 24.04 LTS 24.04:LTS openjdk-21 21.0.13.0.3+1-1~24.04.1
Ubuntu · 26.04 LTS 26.04:LTS openjdk-21 21.0.13.0.3+1-1~26.04.1
Ubuntu · 26.10 openjdk-21 21.0.13.0.3+1-1~26.10.1
Ubuntu · Pro 20.04 LTS Pro:20.04:LTS openjdk-21 21.0.13.0.3+1-1~20.04.1

Vulnerabilities 39

References

  • report
    https://ubuntu.com/security/CVE-2026-83374
  • report
    https://ubuntu.com/security/CVE-2026-83376
  • report
    https://ubuntu.com/security/CVE-2026-83378
  • report
    https://ubuntu.com/security/CVE-2026-83380
  • report
    https://ubuntu.com/security/CVE-2026-83381
  • report
    https://ubuntu.com/security/CVE-2026-83387
  • report
    https://ubuntu.com/security/CVE-2026-83395
  • report
    https://ubuntu.com/security/CVE-2026-83400
  • report
    https://ubuntu.com/security/CVE-2026-87290
  • report
    https://ubuntu.com/security/CVE-2026-87291
  • report
    https://ubuntu.com/security/CVE-2026-87292
  • report
    https://ubuntu.com/security/CVE-2026-87294
  • report
    https://ubuntu.com/security/CVE-2026-87367
  • report
    https://ubuntu.com/security/CVE-2026-91332
  • report
    https://ubuntu.com/security/CVE-2026-91333
  • report
    https://ubuntu.com/security/CVE-2026-91334
  • report
    https://ubuntu.com/security/CVE-2026-91335
  • report
    https://ubuntu.com/security/CVE-2026-91373
  • report
    https://ubuntu.com/security/CVE-2026-91374
  • report
    https://ubuntu.com/security/CVE-2026-91375
  • report
    https://ubuntu.com/security/CVE-2026-91379
  • report
    https://ubuntu.com/security/CVE-2026-91380
  • report
    https://ubuntu.com/security/CVE-2026-91394
  • report
    https://ubuntu.com/security/CVE-2026-91397
  • report
    https://ubuntu.com/security/CVE-2026-91398
  • report
    https://ubuntu.com/security/CVE-2026-91400
  • report
    https://ubuntu.com/security/CVE-2026-91403
  • report
    https://ubuntu.com/security/CVE-2026-91410
  • report
    https://ubuntu.com/security/CVE-2026-91415
  • report
    https://ubuntu.com/security/CVE-2026-91418
  • report
    https://ubuntu.com/security/CVE-2026-91451
  • report
    https://ubuntu.com/security/CVE-2026-91452
  • report
    https://ubuntu.com/security/CVE-2026-91453
  • report
    https://ubuntu.com/security/CVE-2026-91461
  • report
    https://ubuntu.com/security/CVE-2026-91462
  • report
    https://ubuntu.com/security/CVE-2026-91463
  • report
    https://ubuntu.com/security/CVE-2026-91464
  • report
    https://ubuntu.com/security/CVE-2026-91487
  • report
    https://ubuntu.com/security/CVE-2026-101516