High [CVE-2026-55969] Denial of Service via integer overflow or wraparound
This high-severity Red Hat Linux advisory covers CVE-2026-55969 affecting Cryostat 4 on RHEL 9, Multicluster Global Hub 1.4.9, Multicluster Global Hub 1.5.8.
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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: Cryostat 4 on RHEL 9; Multicluster Global Hub 1.4.9; Multicluster Global Hub 1.5.8; Multicluster Global Hub 1.6.6; and 26 more.
- < 0.24.0
Official advisory · high-confidence parse· fetched 20 days ago·verify at source
- 0.24.0
- cryostat/cryostat-storage-rhel9:4.2.0-22
- multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1786621960
- multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1786621682
- multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1785863006
- multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1785442872
- multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1785443657
- rhacm2/acm-grafana-rhel9:1788559869
- rhacm2/acm-grafana-rhel9:1788954486
- rhacm2/acm-grafana-rhel9:1788956632
- rhacm2/acm-grafana-rhel9:1788955233
- rhacm2/acm-grafana-rhel9:1788944338
- rhacm2/acm-grafana-rhel9:1787645431
- rhacm2/acm-grafana-rhel9:1787316467
- rhaiis/vllm-cuda-rhel9:1787860580
- rhaiis/model-opt-cuda-rhel9:1787772157
- rhaiis/vllm-rocm-rhel9:1787884873
- rhaiis/model-opt-cuda-rhel9:1789508287
- rhaiis/vllm-spyre-rhel9:1789502493
- rhaiis/vllm-rocm-rhel9:1789504371
- rhaiis/vllm-cuda-rhel9:1789582776
- rhelai3/bootc-aws-cuda-rhel9:1790936334
- rhelai3/bootc-azure-cuda-rhel9:1790936351
- rhelai3/bootc-azure-rocm-rhel9:1790850900
- rhelai3/bootc-cuda-rhel9:1790866732
- rhelai3/bootc-gcp-cuda-rhel9:1790936334
- rhelai3/bootc-rocm-rhel9:1790791893
- rhelai3/disk-image-cuda-rhel9:1790954179
- 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
- rhai/base-image-neuron-rhel9:1789137552
- rhai/base-image-rocm-7.0-rhel9:1789137548
- rhai/base-image-cuda-13.0-rhel9:1789137636
- rhai/base-image-tpu-rhel9:1789137548
- rhai/base-image-rocm-6.4-rhel9:1789137548
- rhai/base-image-cpu-rhel9:1789137641
- rhai/base-image-spyre-rhel9:1789137607
- rhai/base-image-cuda-12.9-rhel9:1789137636
- rhoai/odh-mlserver-rhel9:1789121365
- rhai/base-image-tpu-rhel9:1788197680
- RHSA-2026:68333
- RHSA-2026:55810
- RHSA-2026:54577
- RHSA-2026:54392
- RHSA-2026:53530
- RHSA-2026:52946
- RHSA-2026:67538
- RHSA-2026:67540
- RHSA-2026:67539
Official advisory · high-confidence parse· fetched 20 days ago·verify at source
Mitigation checklist
- 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 20 days ago·verify at source
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