Vulnerability · Published Mar 11, 2026 · Assigned by HashiCorp
CVE-2026-2808Consul vulnerable to arbitrary file reads through the vault kubernetes authentication provider
Medium 6.8
In plain English
A medium-severity security flaw in Consul from HashiCorp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.5%top 54.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/hashicorp/consul | 1.18.21 | GHSA-cpfq-66p2-336j |
| Go | github.com/hashicorp/consul | 1.22.5 | GHSA-cpfq-66p2-336j |
| Go | github.com/hashicorp/consul | 1.21.11 | GHSA-cpfq-66p2-336j |
| Go | github.com/hashicorp/consul | 1.22.5 | GO-2026-4690 |
| Ubuntu:22.04:LTS | consul | no fix listed | UBUNTU-CVE-2026-2808 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| HashiCorp | Consul | 0 – before 1.22.5 |
| HashiCorp | Consul Enterprise | 0 – before 1.22.5 |
Weakness: CWE-59 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N