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Advisory severityHigh7.5Red Hat Linux

High [CVE-2026-55969] Denial of Service via integer overflow or wraparound

This high-severity Red Hat Linux advisory covers CVE-2026-55969 affecting Multicluster Global Hub 1.4.5, Multicluster Global Hub 1.6.5, Multicluster Global Hub 1.7.0.

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CVE-2026-55969 Source published Source updated

VulniPulse record published Record updated

CVE-2026-55969
Affected products & platforms
Red Hat LinuxUnclassified
Open source advisory

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Summary

Integer Overflow or Wraparound vulnerability in Apache Thrift C++, c_glib, Go, netstd, Delphi and Haxe bindings. This issue affects Apache Thrift: before 0.24.0.

Users are recommended to upgrade to version 0.24.0, which fixes the issue. This integer overflow or wraparound vulnerability allows a remote attacker to cause a denial of service (DoS) by sending specially crafted input.

The flaw can lead to the affected service becoming unavailable. This vulnerability in Apache Thrift bindings, rated as Important, allows a remote attacker to trigger a denial of service.

Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-190.

Affected products named by the advisory: Multicluster Global Hub 1.4.5; Multicluster Global Hub 1.6.5; Multicluster Global Hub 1.7.0; Multicluster Global Hub 1.8.0; and 17 more.

Affected versions
  • < 0.24.0

Official advisory · high-confidence parse· fetched 5 days ago·verify at source

Fixed versions
  • 0.24.0
  • multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1786621960
  • multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1785863006
  • multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1785442872
  • multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1785443657
  • rhacm2/acm-grafana-rhel9:1787316467
  • rhaiis/vllm-cuda-rhel9:1787860580
  • rhaiis/model-opt-cuda-rhel9:1787772157
  • rhaiis/vllm-rocm-rhel9:1787884873
  • jaeger-main-2.20.0-0.5.hum1
  • tempo2-10-main-2.10.7-0.2.hum1
  • tempo3-0-main-3.0.2-0.2.hum1
  • multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1786621682
  • rhosdt/tempo-jaeger-query-rhel9:1788356441
  • rhosdt/tempo-query-rhel9:1788356448
  • rhosdt/tempo-rhel9:1788356473
  • rhosdt/opentelemetry-collector-rhel9:1787661228
  • RHSA-2026:55810
  • RHSA-2026:54392
  • RHSA-2026:53530
  • RHSA-2026:52946
  • RHSA-2026:60386
  • RHSA-2026:61627
  • RHSA-2026:61628
  • RHSA-2026:61629
  • RHSA-2026:46974
  • RHSA-2026:46987
  • RHSA-2026:46989
  • RHSA-2026:54577
  • RHSA-2026:65343
  • RHSA-2026:65542

Official advisory · high-confidence parse· fetched 5 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Official advisory · high-confidence parse· fetched 5 days ago·verify at source

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