CVE-2026-2808 Details
Description
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.
A vulnerability allowing arbitrary file read has been identified in HashiCorp Consul and Consul Enterprise versions 1.18.20 prior to 1.21.10 and 1.22.4. This issue arises when Consul is configured to use Kubernetes authentication, allowing a privileged attacker to exploit the vulnerability by reading files from the Consul server host, potentially leading to unauthorized access to sensitive data.
Users are advised to upgrade to Consul Community Edition 1.22.5 or Consul Enterprise versions 1.18.21, 1.21.11 or 1.22.5. Consult Consul's upgrading documentation for guidance on the upgrade process.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 12, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://discuss.hashicorp.com/t/hcsec-2026-02-consul-vulnerable-to-arbitrary-file-reads-through-the-vault-kubernetes-authentication-provider/77232 | [email protected] |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-59 | Improper Link Resolution Before File Access ('Link Following') | [email protected] |
Affected Products
No affected product data is available for this CVE.
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 12, 2026 | New CVE Received | [email protected] |