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8.3 High

CVE-2026-87090 Consul and Consul Enterprise are vulnerable to an authorization bypass in the catalog node-write path that may allow…

Description

Consul and Consul Enterprise are vulnerable to an authorization bypass in the catalog node-write path that may allow an authenticated attacker to delete another node's catalog registration and take over its node identity. An attacker with a token granting node-write permission on any single node name may exploit this issue if they can obtain the node ID of a node they do not control. This vulnerability (CVE-2026-87090) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.

Affected products and versions

Product Affected versions Fixed in
Consul 0.1 0.1.0 → < 2.0.4 2.0.4
Consul Enterprise 0.1 0.1.0 → < 2.0.4 2.0.4

References

Timeline

  1. Published
  2. Last modified

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