Apache Thrift: Go `THeaderTransport` does not bound the inflated size of a ZLIB frame
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 3 fixed, 10 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.
Summary
Improper handling of highly compressed data (data amplification) vulnerability in Apache Thrift Go bindings. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Apache Thrift (Apache Software Foundation) Fixed in 0.25.0
Red Hat 3 advisories
- RHSA-2026:95360 Released 2026-11-04 · Red Hat rating ImportantRed Hat build of Cryostat security update
- Cryostat 4 on RHEL 9 cryostat/cryostat-grafana-dashboard-rhel9, cryostat/cryostat-openshift-console-plugin-rhel9, cryostat/cryostat-storage-rhel9
- RHSA-2026:92510 Released 2026-10-29 · Red Hat rating CriticalRHOAI 3.4.6 - Red Hat OpenShift AI
- Red Hat OpenShift AI 3.4 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-cli-rhel9, registry.redhat.io/rhoai/odh-dashboard-rhel9 +47
- RHSA-2026:79368 Released 2026-10-08 · Red Hat rating ImportantRed Hat OpenShift distributed tracing platform (Tempo) 3.11.2 release
- Red Hat OpenShift distributed tracing 3.11 registry.redhat.io/rhosdt/tempo-gateway-rhel9, registry.redhat.io/rhosdt/tempo-jaeger-query-rhel9, registry.redhat.io/rhosdt/tempo-query-rhel9 +2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Apache Thrift — lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1
61 records Highest priority Priority MEDIUM 31 MEDIUM, 30 LOW
Other records, highest priority first
- TI-2026-65915 Apache Thrift: PHP `thrift_protocol` accelerator: zero-byte container elementsPriority MEDIUM 45
- TI-2026-65974 Apache Thrift: Ruby `SimpleServer` ends `serve()` on any non-Transport/Protocol exceptionPriority MEDIUM 44
- TI-2026-65968 Apache Thrift: Lua `TFramedTransport`/`THttpTransport` re-slice the buffer on every read (quadratic)Priority MEDIUM 44
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Ansible Automation Orchestrator 2026 | Affected | No fix yet |
| Multicluster Global Hub | Affected | No fix yet |
| Red Hat AI Inference Server | Affected | No fix planned: Will not fix |
| Red Hat Ceph Storage 5 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 6 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 7 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 8 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat OpenShift distributed tracing 3 | Affected | No fix yet |
| Cryostat 4 on RHEL 9 | Fixed | RHSA-2026:95360 |
| Red Hat OpenShift AI 3.4 | Fixed | RHSA-2026:92510 |
| Red Hat OpenShift distributed tracing 3.11 | Fixed | RHSA-2026:79368 |
Not affected: 12 products
- Cryostat 4 on RHEL 9
- Logging Subsystem for Red Hat OpenShift
- Red Hat Advanced Cluster Management for Kubernetes 2
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat Hardened Images
- Red Hat OpenShift AI (RHOAI)
- Red Hat OpenShift AI 3.4
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift distributed tracing 3.11
- Red Hat OpenStack Platform 18.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-94637
- 2026-10-03 Alias added: GHSA-r5wc-ghwh-wjv9
- 2026-10-04 Priority changed: MEDIUM → LOW
- 2026-10-05 CISA SSVC decision points changed
- 2026-10-05 Priority changed: LOW → MEDIUM
- 2026-10-06 Affected versions changed · Red Hat
- 2026-10-07 Affected versions changed · Red Hat
- 2026-10-08 Affected versions changed · Red Hat
- 2026-10-09 Fix available: RHSA-2026:79368 · Red Hat
- 2026-10-09 Fix available: Red Hat OpenShift distributed tracing 3.11.2 · Red Hat
- 2026-10-13 Fix available: Red Hat OpenShift distributed tracing 3.11 · Red Hat
- 2026-10-16 Affected versions changed · Red Hat
- 2026-10-24 Fix available: Red Hat OpenShift distributed tracing 3.11.3 · Red Hat
- 2026-10-26 Fix available: Red Hat OpenShift distributed tracing 3.11 · Red Hat
- 2026-10-27 Affected versions changed · Red Hat
- 2026-10-30 Fix available: RHSA-2026:92510 · Red Hat
- 2026-10-30 Fix available: Red Hat OpenShift AI 3.4 · Red Hat
- 2026-11-03 Affected versions changed · Red Hat
- 2026-11-05 Fix available: Cryostat 4 on RHEL 9 · Red Hat
- 2026-11-06 Fix available: RHSA-2026:95360 · Red Hat
References
More Apache vulnerabilities
- TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
- TI-2024-30292 Apache OFBiz: Confused controller-view authorization logic (forced browsing) KEVCVSS 3.1CRITICAL 9.8
- TI-2024-26062 Apache OFBiz: Unauthenticated endpoint could allow execution of screen rendering code KEVCVSS 3.1CRITICAL 9.8
- TI-2024-21190 Apache OFBiz: Path traversal leading to RCE KEVCVSS 3.1CRITICAL 9.8
- TI-2024-18186 Apache HugeGraph-Server: Command execution in gremlin KEVCVSS 3.1CRITICAL 9.8
- TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
Sources
- CVE-2026-94637 · CVE Program
- CVE-2026-94637 · NVD
- FIRST EPSS
- GHSA-r5wc-ghwh-wjv9 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-94637 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences