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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| HashiCorp | Consul | < 1.22.5 | 1.22.5 |
| HashiCorp | Consul Enterprise | < 1.22.5 | 1.22.5 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 11 | consul | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | consul | No fix yet | — |
| Ubuntu 20.04 LTS | consul | No fix yet | — |
| Ubuntu 18.04 LTS | consul | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 5.4 | golang-github-docker-libnetwork | 0.7.0.1+gitr2908_55e924b8-150000.4.34.1 | SUSE-SU-2026:2740-1 |
| SLE Micro 5.3 | golang-github-docker-libnetwork | 0.7.0.1+gitr2908_55e924b8-150000.4.34.1 | SUSE-SU-2026:2740-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
| openSUSE Leap 15.6 | govulncheck-vulndb | 0.0.20260317T205859-150000.1.152.1 | SUSE-SU-2026:1042-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/hashicorp/consul | < 1.18.21 | 1.18.21 | GHSA-cpfq-66p2-336j |
| Go | github.com/hashicorp/consul | >= 1.22.0-rc1, < 1.22.5 | 1.22.5 | GHSA-cpfq-66p2-336j |
| Go | github.com/hashicorp/consul | >= 1.19.0, < 1.21.11 | 1.21.11 | GHSA-cpfq-66p2-336j |
| Go | github.com/hashicorp/consul | < 1.22.5 | 1.22.5 | GO-2026-4690 |
Advisories 3
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- SUSE-SU-2026:2740-1 Security update for golang-github-docker-libnetwork SUSE / openSUSE Security Updates · Jul 4, 2026
- SUSE-SU-2026:1042-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Mar 26, 2026