CVE-2026-2808

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

State: Published
Severity: 6.8 Medium
Published: Mar 11, 2026
Updated: Apr 17, 2026
Reserved: Feb 19, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	6.8 Medium	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N	HashiCorp

Weaknesses

CWE-59 Improper Link Resolution Before File Access (Link Following)

Affected Products

Product	Versions
ConsulHashiCorp	before 1.22.5Affected
Consul EnterpriseHashiCorp	before 1.22.5Affectedfrom 1.21.11Not affectedfrom 1.18.21Not affected

References

https://discuss.hashicorp.com/t/hcsec-2026-02-consul-vulnerable-to-arbitrary-file-reads-through-the-vault-kubernetes-authentication-provider/77232

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