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News

Select security bulletins, release announcements, or support announcements to stay up to date.

Dec 22, 2025

Support for Istio 1.26 has ended

Istio 1.26 end of life announcement.

Support Announcements

Dec 22, 2025

Announcing Istio 1.28.2

Istio 1.28.2 patch release.

Release Announcements

Dec 22, 2025

Announcing Istio 1.27.5

Istio 1.27.5 patch release.

Release Announcements

Dec 22, 2025

Announcing Istio 1.26.8

Istio 1.26.8 patch release.

Release Announcements

Dec 3, 2025

ISTIO-SECURITY-2025-003

CVEs reported by Envoy.

CVE(s): CVE-2025-66220 , CVE-2025-64527 , CVE-2025-64763
CVSS: 8.1
Affected versions: 1.28.0 , 1.27.0 to 1.27.3 , 1.26.0 to 1.26.6

Security Bulletins

Dec 3, 2025

Announcing Istio 1.28.1

Istio 1.28.1 patch release.

Release Announcements

Dec 3, 2025

Announcing Istio 1.27.4

Istio 1.27.4 patch release.

Release Announcements

Dec 3, 2025

Announcing Istio 1.26.7

Istio 1.26.7 patch release.

Release Announcements

Nov 19, 2025

Support for Istio 1.26 ends on 19 December, 2025

Upcoming Istio 1.26 end of life announcement.

Support Announcements

Nov 5, 2025

Announcing Istio 1.28.0

Istio 1.28 Release Announcement.

Release Announcements

Nov 5, 2025

Change Notes

Istio 1.28.0 release notes.

Release Announcements

Oct 20, 2025

ISTIO-SECURITY-2025-002

CVEs reported by Envoy.

CVE(s): CVE-2025-55162 , CVE-2025-54588
CVSS: 6.6
Affected versions: 1.27.0 to 1.27.1 , 1.26.0 to 1.26.5

Security Bulletins

Oct 20, 2025

Announcing Istio 1.27.3

Istio 1.27.3 patch release.

Release Announcements

Oct 20, 2025

Announcing Istio 1.26.6

Istio 1.26.6 patch release.

Release Announcements

Oct 13, 2025

Announcing Istio 1.27.2

Istio 1.27.2 patch release.

Release Announcements

Oct 13, 2025

Announcing Istio 1.26.5

Istio 1.26.5 patch release.

Release Announcements

Sep 30, 2025

Support for Istio 1.25 has ended

Istio 1.25 end of life announcement.

Support Announcements

Sep 3, 2025

ISTIO-SECURITY-2025-001

CVEs reported by Envoy.

CVE(s): CVE-2025-55162 , CVE-2025-54588
CVSS: 7.5
Affected versions: 1.27.0 , 1.26.0 to 1.26.3 , 1.25.0 to 1.25.4

Security Bulletins

Sep 3, 2025

Announcing Istio 1.27.1

Istio 1.27.1 patch release.

Release Announcements

Sep 3, 2025

Announcing Istio 1.26.4

Istio 1.26.4 patch release.

Release Announcements

Sep 3, 2025

Announcing Istio 1.25.5

Istio 1.25.5 patch release.

Release Announcements

Aug 22, 2025

Support for Istio 1.25 ends on September 22, 2025

Upcoming Istio 1.25 end of life announcement.

Support Announcements

Aug 11, 2025

Announcing Istio 1.27.0

Istio 1.27 Release Announcement.

Release Announcements

Aug 11, 2025

Istio 1.27.0 Change Notes

Istio 1.27.0 release notes.

Release Announcements

Aug 8, 2025

Announcing Istio 1.25.4

Istio 1.25.4 patch release.

Release Announcements

Jul 29, 2025

Announcing Istio 1.26.3

Istio 1.26.3 patch release.

Release Announcements

Jun 24, 2025

Support for Istio 1.24 has ended

Istio 1.24 end of life announcement.

Support Announcements

Jun 20, 2025

Announcing Istio 1.26.2

Istio 1.26.2 patch release.

Release Announcements

Jun 12, 2025

Support for Istio 1.24 ends on June 19, 2025

Upcoming Istio 1.24 end of life announcement.

Support Announcements

May 29, 2025

Announcing Istio 1.26.1

Istio 1.26.1 patch release notes.

Release Announcements

May 13, 2025

Announcing Istio 1.25.3

Istio 1.25.3 patch release.

Release Announcements

May 13, 2025

Announcing Istio 1.24.6

Istio 1.24.6 patch release.

Release Announcements

May 8, 2025

Announcing Istio 1.26.0

Istio 1.26 Release Announcement.

Release Announcements

May 8, 2025

Istio 1.26.0 Change Notes

Istio 1.26.0 release notes.

Release Announcements

Apr 16, 2025

Support for Istio 1.23 has ended

Istio 1.23 end of life announcement.

Support Announcements

Apr 14, 2025

Announcing Istio 1.25.2

Istio 1.25.2 patch release.

Release Announcements

Apr 14, 2025

Announcing Istio 1.24.5

Istio 1.24.5 patch release.

Release Announcements

Apr 7, 2025

Announcing Istio 1.23.6

Istio 1.23.6 patch release.

Release Announcements

Mar 26, 2025

Announcing Istio 1.25.1

Istio 1.25.1 patch release.

Release Announcements

Mar 25, 2025

Announcing Istio 1.24.4

Istio 1.24.4 patch release.

Release Announcements

Mar 17, 2025

Support for Istio 1.23 ends on April 16, 2025

Upcoming Istio 1.23 end of life announcement.

Support Announcements

Mar 3, 2025

Announcing Istio 1.25.0

Istio 1.25 Release Announcement.

Release Announcements

Mar 3, 2025

Istio 1.25 Upgrade Notes

Important changes to consider when upgrading to Istio 1.25.0.

Release Announcements

Mar 3, 2025

Istio 1.25.0 Change Notes

Istio 1.25.0 release notes.

Release Announcements

Feb 13, 2025

Announcing Istio 1.23.5

Istio 1.23.5 patch release.

Release Announcements

Feb 12, 2025

Announcing Istio 1.24.3

Istio 1.24.3 patch release.

Release Announcements

Jan 22, 2025

Support for Istio 1.22 has ended

Istio 1.22 end of life announcement.

Support Announcements

Jan 22, 2025

Announcing Istio 1.22.8

Istio 1.22.8 patch release.

Release Announcements

Dec 21, 2024

Support for Istio 1.22 ends on January 21st, 2025

Upcoming Istio 1.22 end of life announcement.

Support Announcements

Dec 18, 2024

ISTIO-SECURITY-2024-007

CVEs reported by Envoy.

CVE(s): CVE-2024-53269 , CVE-2024-53270 , CVE-2024-53271
CVSS: 7.5
Affected versions: 1.22.0 to 1.22.6 , 1.23.0 to 1.23.3 , 1.24.0 to 1.24.1

Security Bulletins

Dec 18, 2024

Announcing Istio 1.24.2

Istio 1.24.2 patch release.

Release Announcements

Dec 18, 2024

Announcing Istio 1.23.4

Istio 1.23.4 patch release.

Release Announcements

Dec 18, 2024

Announcing Istio 1.22.7

Istio 1.22.7 patch release.

Release Announcements

Nov 7, 2024

Announcing Istio 1.24.0

Istio 1.24 Release Announcement.

Release Announcements

Nov 7, 2024

Istio 1.24 Upgrade Notes

Important changes to consider when upgrading to Istio 1.24.0.

Release Announcements

Nov 7, 2024

Istio 1.24.0 Change Notes

Istio 1.24.0 release notes.

Release Announcements

Oct 24, 2024

Announcing Istio 1.23.3

Istio 1.23.3 patch release.

Release Announcements

Oct 23, 2024

Announcing Istio 1.22.6

Istio 1.22.6 patch release.

Release Announcements

Sep 27, 2024

Support for Istio 1.21 has ended

Istio 1.21 end of life announcement.

Support Announcements

Sep 23, 2024

Announcing Istio 1.21.6

Istio 1.21.6 patch release.

Release Announcements

Sep 19, 2024

ISTIO-SECURITY-2024-006

CVEs reported by Envoy.

CVE(s): CVE-2024-45807 , CVE-2024-45808 , CVE-2024-45806 , CVE-2024-45809 , CVE-2024-45810
CVSS: 7.5
Affected versions: 1.22.0 to 1.22.4 , 1.23.0 to 1.23.1

Security Bulletins

Sep 19, 2024

Announcing Istio 1.23.2

Istio 1.23.2 patch release.

Release Announcements

Sep 19, 2024

Announcing Istio 1.22.5

Istio 1.22.5 patch release.

Release Announcements

Sep 10, 2024

Announcing Istio 1.23.1

Istio 1.23.1 patch release.

Release Announcements

Aug 29, 2024

Support for Istio 1.21 ends on September 27, 2024

Upcoming Istio 1.21 end of life announcement.

Support Announcements

Aug 19, 2024

Announcing Istio 1.22.4

Istio 1.22.4 patch release.

Release Announcements

Aug 14, 2024

Announcing Istio 1.23.0

Istio 1.23 Release Announcement.

Release Announcements

Aug 14, 2024

Istio 1.23 Upgrade Notes

Important changes to consider when upgrading to Istio 1.23.0.

Release Announcements

Aug 14, 2024

Istio 1.23.0 Change Notes

Istio 1.23.0 release notes.

Release Announcements

Jul 16, 2024

Announcing Istio 1.22.3

Istio 1.22.3 patch release.

Release Announcements

Jul 16, 2024

Announcing Istio 1.21.5

Istio 1.21.5 patch release.

Release Announcements

Jul 1, 2024

Announcing Istio 1.20.8

Istio 1.20.8 patch release.

Release Announcements

Jun 27, 2024

ISTIO-SECURITY-2024-005

CVEs reported by Envoy.

CVSS: 7.5
Affected versions: 1.21.0 to 1.21.3 , 1.22.0 to 1.22.1

Security Bulletins

Jun 27, 2024

Announcing Istio 1.22.2

Istio 1.22.2 patch release.

Release Announcements

Jun 27, 2024

Announcing Istio 1.21.4

Istio 1.21.4 patch release.

Release Announcements

Jun 25, 2024

Support for Istio 1.20 has ended

Istio 1.20 end of life announcement.

Support Announcements

Jun 4, 2024

ISTIO-SECURITY-2024-004

CVEs reported by Envoy.

CVE(s): CVE-2024-32976 , CVE-2024-32975 , CVE-2024-32974 , CVE-2024-34363 , CVE-2024-34362 , CVE-2024-23326 , CVE-2024-34364
CVSS: 7.5
Affected versions: All releases prior to 1.20.0 , 1.20.0 to 1.20.6 , 1.21.0 to 1.21.2 , 1.22.0

Security Bulletins

Jun 4, 2024

Announcing Istio 1.22.1

Istio 1.22.1 patch release.

Release Announcements

Jun 4, 2024

Announcing Istio 1.21.3

Istio 1.21.3 patch release.

Release Announcements

Jun 4, 2024

Announcing Istio 1.20.7

Istio 1.20.7 patch release.

Release Announcements

May 24, 2024

Support for Istio 1.20 ends on June 25, 2024

Upcoming Istio 1.20 end of life announcement.

Support Announcements

May 13, 2024

Announcing Istio 1.22.0

Istio 1.22 Release Announcement.

Release Announcements

May 13, 2024

Istio 1.22 Upgrade Notes

Important changes to consider when upgrading to Istio 1.22.x.

Release Announcements

May 13, 2024

Istio 1.22.0 Change Notes

Istio 1.22.0 release notes.

Release Announcements

Apr 24, 2024

Support for Istio 1.19 has ended

Istio 1.19 end of life announcement.

Support Announcements

Apr 22, 2024

ISTIO-SECURITY-2024-003

CVEs reported by Envoy.

CVE(s): CVE-2024-32475
CVSS: 7.5
Affected versions: All releases prior to 1.19.0 , 1.19.0 to 1.19.9 , 1.20.0 to 1.20.5 , 1.21.0 to 1.21.1

Security Bulletins

Apr 22, 2024

Announcing Istio 1.21.2

Istio 1.21.2 patch release.

Release Announcements

Apr 22, 2024

Announcing Istio 1.20.6

Istio 1.20.6 patch release.

Release Announcements

Apr 22, 2024

Announcing Istio 1.19.10

Istio 1.19.10 patch release.

Release Announcements

Apr 8, 2024

ISTIO-SECURITY-2024-002

CVEs reported by Envoy and Go.

CVE(s): CVE-2024-27919 , CVE-2024-30255 , CVE-2023-45288
CVSS: 7.5
Affected versions: All releases prior to 1.19.0 , 1.19.0 to 1.19.8 , 1.20.0 to 1.20.4 , 1.21.0

Security Bulletins

Apr 8, 2024

Announcing Istio 1.21.1

Istio 1.21.1 patch release.

Release Announcements

Apr 8, 2024

Announcing Istio 1.20.5

Istio 1.20.5 patch release.

Release Announcements

Apr 8, 2024

Announcing Istio 1.19.9

Istio 1.19.9 patch release.

Release Announcements

Mar 27, 2024

Support for Istio 1.19 ends on April 24, 2024

Upcoming Istio 1.19 end of life announcement.

Support Announcements

Mar 14, 2024

Announcing Istio 1.20.4

Istio 1.20.4 patch release.

Release Announcements

Mar 14, 2024

Announcing Istio 1.19.8

Istio 1.19.8 patch release.

Release Announcements

Mar 13, 2024

Announcing Istio 1.21.0

Istio 1.21 Release Announcement.

Release Announcements

Mar 13, 2024

Istio 1.21 Upgrade Notes

Important changes to consider when upgrading to Istio 1.21.x.

Release Announcements

Mar 13, 2024

Istio 1.21.0 Change Notes

Istio 1.21.0 release notes.

Release Announcements

Feb 9, 2024

ISTIO-SECURITY-2024-001

CVEs reported by Envoy.

CVE(s): CVE-2024-23322 , CVE-2024-23323 , CVE-2024-23324 , CVE-2024-23325 , CVE-2024-23327
CVSS: 8.6
Affected versions: All releases prior to 1.19.0 , 1.19.0 to 1.19.6 , 1.20.0 to 1.20.2

Security Bulletins

Feb 9, 2024

Announcing Istio 1.20.3

Istio 1.20.3 patch release.

Release Announcements

Feb 9, 2024

Announcing Istio 1.19.7

Istio 1.19.7 patch release.

Release Announcements

Jan 9, 2024

Announcing Istio 1.20.2

Istio 1.20.2 patch release.

Release Announcements

Jan 5, 2024

Announcing Istio 1.19.6

Istio 1.19.6 patch release.

Release Announcements

Jan 4, 2024

Support for Istio 1.18 has ended

Istio 1.18 end of life announcement.

Support Announcements

Jan 4, 2024

Announcing Istio 1.18.7

Istio 1.18.7 patch release.

Release Announcements

Dec 12, 2023

ISTIO-SECURITY-2023-005

Changes to Istio CNI RBAC permissions.

CVSS: N/A
Affected versions: All releases prior to 1.18.0 , 1.18.0 to 1.18.5 , 1.19.0 to 1.19.4 , 1.20.0

Security Bulletins

Dec 12, 2023

Announcing Istio 1.20.1

Istio 1.20.1 patch release.

Release Announcements

Dec 12, 2023

Announcing Istio 1.19.5

Istio 1.19.5 patch release.

Release Announcements

Dec 12, 2023

Announcing Istio 1.18.6

Istio 1.18.6 patch release.

Release Announcements

Nov 29, 2023

Support for Istio 1.18 ends on December 26, 2023

Upcoming Istio 1.18 end of life announcement.

Support Announcements

Nov 14, 2023

Announcing Istio 1.20.0

Istio 1.20 Release Announcement.

Release Announcements

Nov 14, 2023

Istio 1.20 Upgrade Notes

Important changes to consider when upgrading to Istio 1.20.

Release Announcements

Nov 14, 2023

Istio 1.20.0 Change Notes

Istio 1.20.0 change notes.

Release Announcements

Nov 13, 2023

Announcing Istio 1.19.4

Istio 1.19.4 patch release.

Release Announcements

Oct 27, 2023

Support for Istio 1.17 has ended

Istio 1.17 end of life announcement.

Support Announcements

Oct 11, 2023

ISTIO-SECURITY-2023-004

CVEs reported by Envoy and Go.

CVE(s): CVE-2023-44487 , CVE-2023-39325
CVSS: 7.5
Affected versions: All releases prior to 1.17.0 , 1.17.0 to 1.17.6 , 1.18.0 to 1.18.3 , 1.19.0 to 1.19.1

Security Bulletins

Oct 11, 2023

Announcing Istio 1.19.3

Istio 1.19.3 patch release.

Release Announcements

Oct 11, 2023

Announcing Istio 1.18.5

Istio 1.18.5 patch release.

Release Announcements

Oct 11, 2023

Announcing Istio 1.17.8

Istio 1.17.8 patch release.

Release Announcements

Oct 2, 2023

Announcing Istio 1.19.1

Istio 1.19.1 patch release.

Release Announcements

Sep 27, 2023

Support for Istio 1.17 ends on October 27, 2023

Upcoming Istio 1.17 end of life announcement.

Support Announcements

Sep 19, 2023

Announcing Istio 1.17.6

Istio 1.17.6 patch release.

Release Announcements

Sep 12, 2023

Announcing Istio 1.18.3

Istio 1.18.3 patch release.

Release Announcements

Sep 5, 2023

Announcing Istio 1.19.0

Istio 1.19 Release Announcement.

Release Announcements