CVE-2026-87107
Consul and Consul Enterprise are vulnerable to an authorization bypass in the catalog deregistration path that may allow a local ACL token to delete peer-imported catalog objects. A caller with {{service:write}} or {{node:write}} permission may exploit this issue to remove services, checks, or nodes imported from a peered cluster without holding authority over the peer origin. This vulnerability (CVE-2026-87107) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.4
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
- CWE
- CWE-863
- Published
- 2026-09-10
- Last modified
- 2026-09-10
Affected products
- HashiCorp Consul
- HashiCorp Consul Enterprise
Weakness type
Related vulnerabilities
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- CVE-2026-88008 — Traefik: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') and Incorrect Authorization
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- CVE-2026-88006 — Open WebUI: Users denied by the OAuth role policy can still sign in via token exchange
- CVE-2026-88005 — Open WebUI: Users denied by the OAuth domain allowlist or role policy can still sign in via token exchange
- CVE-2026-88894 — Snipe-IT before 8.7.2 Authorization Bypass via Predefined Kit Checkout