CVE-2026-56852: Infinite loop on invalid input in golang.org/x/text

Published Jul 21, 2026
·
Updated

A norm.Iter can enter an infinite loop when handling input containing invalid UTF-8 bytes.

Other sources

Infinite loop on invalid input in golang.org/x/text

— Microsoft

Affected Software

41 affected componentsFixes available
golang.org/x/text/norm
Microsoft azl3 vitess 19.0.4-10<19.0.4-11
19.0.4-11
Microsoft azl3 prometheus-process-exporter 0.8.2-4<0.8.2-5
0.8.2-5
Microsoft azl3 telegraf 1.31.0-23<1.31.0-25
1.31.0-25
Microsoft azl3 prometheus-adapter 0.12.0-6<0.12.0-7
0.12.0-7
Microsoft azl3 multus 4.0.2-9<4.0.2-10
4.0.2-10
Microsoft azl3 prometheus-node-exporter 1.7.0-4<1.7.0-5
1.7.0-5
Microsoft azl3 opa 0.63.0-4<0.63.0-5
0.63.0-5
Microsoft azl3 kubernetes 1.30.10-25<1.30.10-26
1.30.10-26
Microsoft azl3 kubevirt 1.7.1-7<1.7.1-8
1.7.1-8
Microsoft azl3 moby-containerd-cc 1.7.7-13<1.7.7-16
1.7.7-16
Microsoft azl3 kured 1.15.0-5<1.15.0-6
1.15.0-6
Microsoft azl3 kube-vip-cloud-provider 0.0.10-6<0.0.10-7
0.0.10-7
Microsoft azl3 kata-containers-cc 3.15.0.aks0-15<3.15.0.aks0-16
3.15.0.aks0-16
Microsoft azl3 keda 2.14.1-15<2.14.1-16
2.14.1-16
Microsoft azl3 kata-containers 3.19.1.kata3-6<3.19.1.kata3-7
3.19.1.kata3-7
Microsoft azl3 flannel 0.24.2-28<0.24.2-29
0.24.2-29
Microsoft azl3 git-lfs 3.6.1-4<3.6.1-5
3.6.1-5
Microsoft azl3 etcd 3.5.30-2<3.5.33-1
3.5.33-1
Microsoft azl3 gh 2.62.0-18<2.62.0-19
2.62.0-19
Microsoft azl3 docker-cli 25.0.7-3<25.0.7-4
25.0.7-4
Microsoft azl3 dcos-cli 1.2.0-21<1.2.0-22
1.2.0-22
Microsoft azl3 docker-buildx 0.14.0-15<0.14.0-16
0.14.0-16
Microsoft azl3 coredns 1.11.4-17<1.11.4-18
1.11.4-18
Microsoft azl3 containerized-data-importer 1.62.0-6<1.62.0-7
1.62.0-7
Microsoft azl3 cloud-provider-kubevirt 0.5.1-5<0.5.1-6
0.5.1-6
Microsoft azl3 azcopy 10.25.1-6<10.25.1-7
10.25.1-7
Microsoft azl3 cri-tools 1.32.0-6<1.32.0-7
1.32.0-7
Microsoft azl3 moby-engine 25.0.3-18<25.0.3-19
25.0.3-19
Microsoft azl3 packer 1.9.5-16<1.9.5-18
1.9.5-18
Microsoft azl3 jx 3.10.182-4<3.10.182-5
3.10.182-5
Microsoft azl3 docker-compose 2.27.0-12<2.27.0-13
2.27.0-13
Microsoft azl3 cert-manager 1.12.15-9<1.12.15-10
1.12.15-10
Microsoft azl3 influxdb 2.7.5-18<2.7.5-19
2.7.5-19
Microsoft azl3 cf-cli 8.7.11-7<8.7.11-8
8.7.11-8
Microsoft azl3 azurelinux-image-tools 1.5.0-1<1.5.0-2
1.5.0-2
Microsoft azl3 ignition-flatcar 2.22.0-5<2.22.0-6
2.22.0-6
Microsoft azl3 sriov-network-device-plugin 3.7.0-6<3.7.0-7
3.7.0-7
Microsoft azl3 skopeo 1.14.4-11<1.14.4-12
1.14.4-12
Microsoft azl3 application-gateway-kubernetes-ingress 1.7.7-5<1.7.7-6
1.7.7-6
Microsoft azl3 containerd2 2.2.4-4<2.2.4-6
2.2.4-6

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 19.0.4-11
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 0.8.2-5
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.31.0-25
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 0.12.0-7
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 4.0.2-10
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.7.0-5
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 0.63.0-5
  8. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.30.10-26
  9. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.7.1-8
  10. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.15.0-6
  11. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.7.7-16
  12. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 0.0.10-7
  13. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 2.14.1-16
  14. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 3.15.0.aks0-16
  15. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 0.24.2-29
  16. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 3.19.1.kata3-7
  17. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 3.6.1-5
  18. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 3.5.33-1
  19. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 2.62.0-19
  20. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 25.0.7-4
  21. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.2.0-22
  22. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 0.14.0-16
  23. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.11.4-18
  24. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.62.0-7
  25. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 0.5.1-6
  26. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.25.1-7
  27. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 25.0.3-19
  28. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.32.0-7
  29. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.9.5-18
  30. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 3.10.182-5
  31. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 2.27.0-13
  32. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.12.15-10
  33. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 2.7.5-19
  34. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.5.0-2
  35. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 8.7.11-8
  36. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 3.7.0-7
  37. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 2.22.0-6
  38. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.14.4-12
  39. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.7.7-6
  40. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 2.2.4-6

Event History

Jul 21, 2026
CVE Published
via MITRE·07:18 PM
Data Sourced
via MITRE·07:18 PM
DescriptionWeakness
Data Sourced
via Red Hat·08:02 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·08:17 PM
DescriptionSeverityWeakness
Jul 25, 2026
Data Sourced
via Microsoft·08:04 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·08:04 AM
Affected Software
Updated
via Microsoft·08:04 AM
DescriptionSeverity
Aug 5, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2026-56852?

CVE-2026-56852 has a high severity rating of 7.5 according to the CVSS version 3.1.

2

How do I fix CVE-2026-56852?

To fix CVE-2026-56852, update the golang.org/x/text library to the latest version that addresses this vulnerability.

3

What kind of input causes the issue in CVE-2026-56852?

CVE-2026-56852 is triggered by input containing invalid UTF-8 bytes.

4

What component of golang.org/x/text is affected by CVE-2026-56852?

CVE-2026-56852 affects the norm.Iter function in the golang.org/x/text/norm package.

5

What is the consequence of the vulnerability identified by CVE-2026-56852?

The consequence of CVE-2026-56852 is that the program can enter an infinite loop, potentially leading to denial of service.

Company

Resources

Contact

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