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Fencer Intel
high 8.2

CVE-2026-94637 json

Apache Thrift: Go `THeaderTransport` does not bound the inflated size of a ZLIB frame

published last mo. modified last mo. also BIT-thrift-2026-94637 , EUVD-2026-91561

cvss
8.2
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 20%
public exploits
0
none known

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.

Patch / fix

  • bitnami thrift 0.25.0
  • Apache Software Foundation Apache Thrift 0.25.0
  • kata-containers-cc Azure Linux 3.0 3.15.0.aks0-23
  • telegraf Azure Linux 3.0 1.31.0-35
  • vitess Azure Linux 3.0 19.0.4-16

azure linux advisories AZL-106515AZL-106536AZL-106653

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Is CVE-2026-94637 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-94637 updated cvss 7.5

github.com/apache/thrift: Apache Thrift: Denial of Service via improper handling of compressed data

  • Red Hat Ansible Automation Orchestrator 2026 ansible-automation-platform/automation-orchestrator-temporal-rhel9 Red Hat Multicluster Global Hub multicluster-globalhub/multicluster-globalhub-grafana-rhel9
    affected: workaround, no fix available
  • Red Hat AI Inference Server rhaiis/vllm-cpu-rhel9, rhaiis/vllm-tpu-rhel9
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Ceph Storage 5 rhceph/snmp-notifier-rhel8 Red Hat Ceph Storage 6 rhceph/snmp-notifier-rhel9, rhceph/rhceph-6-dashboard-rhel9 Red Hat Ceph Storage 7 thrift, rhceph/grafana-rhel9, rhceph/snmp-notifier-rhel9 Red Hat Ceph Storage 8 thrift, thrift-qt, perl-thrift, thrift-glib, python3-thrift, rhceph/grafana-rhel9, +1 more Red Hat Ceph Storage 9 thrift, libarrow, parquet-libs, rhceph-ci/alloy, rhceph-ci/grafana, rhceph/alloy-rhel10, +3 more
    affected: workaround, no fix available “Fix deferred”
  • Red Hat OpenShift Container Platform 4 openshift4/cnf-tests-rhel8, openshift4/ztp-site-generate-rhel8
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat OpenShift distributed tracing 3 rhosdt/opentelemetry-collector-rhel9
    affected: workaround, no fix available
  • Red Hat Cryostat 4 on RHEL 9 cryostat/cryostat-storage-rhel9 4.2.0-28
    fixed: vendor fix RHSA-2026:95360
  • Red Hat OpenShift AI 3.4 rhoai/odh-feature-server-rhel9 1792685074
    fixed: vendor fix RHSA-2026:92510
  • Red Hat OpenShift distributed tracing 3.11 rhosdt/tempo-rhel9 1791452605, rhosdt/tempo-query-rhel9 1791452557, rhosdt/tempo-jaeger-query-rhel9 1791452569
    fixed: vendor fix RHSA-2026:79368
show 7 more
  • Red Hat Cryostat 4 on RHEL 9 cryostat/cryostat-rhel9 4.2.0-18, cryostat/cryostat-db-rhel9 4.2.0-29, cryostat/jfr-datasource-rhel9 4.2.0-19, cryostat/cryostat-reports-rhel9 4.2.0-19, cryostat/cryostat-rhel9-operator 4.2.0-29, cryostat/cryostat-operator-bundle 4.2.0-15, +3 more
    not affected: vulnerable code not present
  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/logging-loki-rhel9 Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/acm-grafana-rhel9
    not affected: vulnerable code not in execute path
  • Red Hat Enterprise Linux 8 grafana, grafana-loki, grafana-mssql, grafana-mysql, grafana-selinux, grafana-graphite, +9 more
    not affected: component not present
  • Red Hat Enterprise Linux 9 grafana, grafana-selinux, grafana 12.4.3-2.el10, opentelemetry-collector, opentelemetry-collector 0.152.1-2.el10_2
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 10 grafana 12.4.3-2.el10, opentelemetry-collector 0.152.1-2.el10_2
    not affected: vulnerable code not in execute path
  • Red Hat Hardened Images loki3.7 3.7.8-0.3.hum1, jaeger 2.20.0-0.11.hum1, tempo3.0 3.0.3-0.4.hum1, tempo2.10 2.10.8-0.4.hum1, grafana13.1 13.1.6-0.5.hum1, grafana13.2 13.2.1-0.8.hum1, +4 more Red Hat OpenShift AI (RHOAI) rhoai/odh-model-registry-rhel9
    not affected: component not present
  • Red Hat OpenShift AI 3.4 rhoai/odh-cli-rhel9 1792722177, rhoai/rhai-cli-rhel9 1792722177, rhoai/odh-automl-rhel9 1792697253, rhoai/odh-mlflow-rhel9 1793002327, rhoai/odh-autorag-rhel9 1793265800, rhoai/odh-trainer-rhel9 1792817113, +99 more Red Hat OpenShift Container Platform 4 openshift4/oc-mirror-plugin-rhel9 Red Hat OpenShift distributed tracing 3.11 rhosdt/tempo-gateway-rhel9 1791452560, rhosdt/tempo-rhel9-operator 1791452562, rhosdt/tempo-operator-bundle 1791462496, rhosdt/tempo-gateway-opa-rhel9 1791456914 Red Hat OpenStack Platform 18.0 rhoso-operators/openstack-operator-bundle
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
last mo.

Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 4.0 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
bitnami thrift
<0.25.0
0.25.0

Affected products

  • Apache Software Foundation Apache Thrift

Classification

Weakness
  • CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.