CVE-2026-105608

Public on 2026-10-26

Modified on 2026-11-04

Description

HashiCorp Consul and Consul Enterprise are vulnerable to an authorization bypass in service mesh proxy registration. This may allow a user with service write permission to apply Envoy escape-hatch configuration without the required mesh write permission. This vulnerability (CVE-2026-105608) is fixed in Consul Community Edition 2.1.0 and Consul Enterprise 2.1.0 and 1.21.19.

Severity

Important

See what this means

CVSS v3 Base Score

8.3

See breakdown

Affected Packages

Platform	Package	Status
Amazon Linux 2 - Core	amazon-cloudwatch-agent	Not Affected
Amazon Linux 2023	amazon-cloudwatch-agent	Not Affected
Amazon Linux 2027 Preview	amazon-cloudwatch-agent	Not Affected
Amazon Linux 2 - Aws-nitro-enclaves-cli Extra	docker	Not Affected
Amazon Linux 2 - Docker Extra	docker	Not Affected
Amazon Linux 2 - Ecs Extra	docker	Not Affected

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	8.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-105608 Mitre: CVE-2026-105608