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Fencer Intel
medium 6.8

CVE-2026-2808 json

Consul vulnerable to arbitrary file reads through the vault kubernetes authentication provider

published 7mo ago modified 4mo ago also BIT-consul-2026-2808 , EUVD-2026-11487 , GHSA-cpfq-66p2-336j , GO-2026-4690

cvss
6.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits
0
none known

Summary

HashiCorp Consul and Consul Enterprise 1.18.20 up to 1.21.10 and 1.22.4 are vulnerable to arbitrary file read when configured with Kubernetes authentication. This vulnerability, CVE-2026-2808, is fixed in Consul 1.18.21, 1.21.11 and 1.22.5.

Patch / fix

  • go github.com/hashicorp/consul 1.18.21, 1.21.11, 1.22.5
  • bitnami consul 1.22.5
  • HashiCorp Consul 1.22.5
  • HashiCorp Consul Enterprise 1.18.21, 1.21.11, 1.22.5
  • golang-github-docker-libnetwork SLE Micro 5.4, SLE Micro 5.3 0.7.0.1+gitr2908_55e924b8-150000.4.34.1
  • govulncheck-vulndb openSUSE Leap 15.6 0.0.20260317T205859-150000.1.152.1

suse advisories SUSE-SU-2026:2740-1SUSE-SU-2026:1042-1

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1

opensuse advisories openSUSE-SU-2026:21483-1

Is CVE-2026-2808 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.

Check with Fencer

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-2026-2808 updated cvss 6.8

github.com/hashicorp/consul: HashiCorp Consul: Arbitrary file read via Kubernetes authentication configuration

  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/logging-loki-rhel9, openshift-logging/loki-rhel9-operator Red Hat Multicluster Global Hub multicluster-globalhub/multicluster-globalhub-grafana-rhel9 Red Hat OpenShift Serverless openshift-serverless-1/kn-plugin-event-sender-rhel9 Red Hat OpenShift Service Mesh 2 openshift-service-mesh/istio-rhel8-operator Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/prometheus-rhel9, rhacm2/acm-grafana-rhel9, rhacm2/kube-state-metrics-rhel9 Red Hat Ansible Automation Platform 2 ansible-automation-platform/platform-operator-bundle
    +8 more products
    Red Hat Edge Manager 1 flightctl, rhem/flightctl-api-rhel9, rhem/flightctl-worker-rhel9, rhem/flightctl-db-setup-rhel9, rhem/flightctl-periodic-rhel9, rhem/flightctl-pam-issuer-rhel9, +5 more Red Hat Enterprise Linux 9 opentelemetry-collector Red Hat Enterprise Linux 10 opentelemetry-collector Red Hat OpenShift Container Platform 4 openshift4/ose-prometheus, openshift4/ose-prometheus-rhel9, openshift4/oc-mirror-plugin-rhel9, openshift4/ose-kube-state-metrics-rhel9 Red Hat OpenShift Dev Spaces devspaces/traefik-rhel9 Red Hat OpenShift distributed tracing 3 rhosdt/tempo-rhel9, rhosdt/tempo-query-rhel9, rhosdt/opentelemetry-rhel9-operator, rhosdt/opentelemetry-collector-rhel9, rhosdt/opentelemetry-target-allocator-rhel9 Red Hat OpenShift GitOps openshift-gitops-1/argocd-rhel8, openshift-gitops-1/argocd-rhel9 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
no
Technical impact
partial
Assessed
7mo ago

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 6.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
GitHub 3.1 6.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
OSV 3.1 6.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
go github.com/hashicorp/consul
<1.18.21
>=1.22.0-rc1, <1.22.5
>=1.19.0, <1.21.11
<1.22.5
1.18.21
1.22.5
1.21.11
bitnami consul
<1.22.5
1.22.5

Affected products

  • HashiCorp Consul
  • HashiCorp Consul Enterprise

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access

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.