CVE-2026-19016
CVE-2026-19016 · Authorization bypass for session deletion in the transaction API
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Consul Community Edition and Consul Enterprise 1.19.1 through 2.0.2 did not enforce the {{session:write}} ACL permission for session deletion operations submitted through the transaction API. An authenticated caller with network access to the Consul server RPC port could delete arbitrary sessions without holding the required permission. This vulnerability, CVE-2026-19016, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
CVSS 4.2 · Medium · EPSS 0.3% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
consul
- Versions
- ≥ 1.19.1, < 2.0.3: Affected (semver)
Update to 2.0.3
consul enterprise
- Versions
- ≥ 1.19.1, < 2.0.3: Affected; ≥ 1.21.17: Not affected; ≥ 1.22.11: Not affected (semver)
Update to 1.21.17
consul Debian:11
- Versions
- 1.10.12+dfsg1-1
- 1.8.7+dfsg1-2
- 1.8.7+dfsg1-3
- 1.8.7+dfsg1-4
- 1.8.7+dfsg1-5
- 1.8.7+dfsg1-6
- 1.9.17+dfsg2-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
consul Ubuntu:18.04:LTS
- Versions
- 0.6.4~dfsg-3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
consul Ubuntu:20.04:LTS
- Versions
- 1.0.7~dfsg1-5ubuntu1
- 1.4.4~dfsg1-2ubuntu2
- 1.5.2+dfsg1-6
- 1.5.2+dfsg1-10
- 1.5.2+dfsg1-12
- 1.5.2+dfsg2-14
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
consul Ubuntu:22.04:LTS
- Versions
- 1.7.4+dfsg1-1
- 1.8.7+dfsg1-3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published