CVE-2026-87107CWE-863broken-access-control

CVE-2026-87107

Medium · published September 10, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
23.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00314 · 23.1th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-09-10T23:17Z
References (1)
https://discuss.hashicorp.com/t/hcsec-2026-36-consul-vulnerable-to-an-authorization-bypass-in-the-catalog-deregistration-path/77738 · [email protected]
EPSS history
Timeline
  • 12 SEP 03:22Z
    EPSS moved — → 0%
    epss
  • 10 SEP 18:57Z
    Consul vulnerable to an authorization bypass in the catalog deregistration path
    cvelistv5