CVE-2026-19016
published 2026-08-07CVE-2026-19016: 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…
PriorityP426medium4.2CVSS 3.1
AVNACHPRLUINSUCNILAL
EPSS
0.27%
18.9th percentile
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.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| grafana | grafana | — | — |
| hashicorp | consul | >= 1.19.1 < 2.0.3 | 2.0.3 |
| hashicorp | consul_enterprise | >= 1.19.1 < 2.0.3 | 2.0.3 |
CVSS provenance
nvdv3.14.2MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
vendor_redhat4.2MEDIUM
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GHSA
Consul Community Edition and Consul Enterprise 1.19.1 through 2.0.2 did not enforce the ACL permission for session deletion operations submitted through the transaction API.
ghsa_unreviewed·2026-08-07·CVSS 4.2
CVE-2026-19016 [MEDIUM] CWE-22 Consul Community Edition and Consul Enterprise 1.19.1 through 2.0.2 did not enforce the ACL permission for session deletion operations submitted through the transaction API.
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.
VulDB
HashiCorp Consul/Consul Enterprise up to 2.0.2 Transaction API permission
vuldb·2026-08-07·CVSS 4.2
CVE-2026-19016 [MEDIUM] HashiCorp Consul/Consul Enterprise up to 2.0.2 Transaction API permission
A vulnerability classified as very critical has been found in HashiCorp Consul and Consul Enterprise. The affected element is an unknown function of the component Transaction API. This manipulation causes permission issues.
This vulnerability is registered as CVE-2026-19016. Remote exploitation of the attack is possible. No exploit is available.
It is recommended to upgrade the affected component.
Red Hat
consul: Consul: Authorization bypass allows arbitrary session deletion via transaction API
vendor_redhat·2026-08-07·CVSS 4.2
CVE-2026-19016 [MEDIUM] CWE-639 consul: Consul: Authorization bypass allows arbitrary session deletion via transaction API
consul: Consul: Authorization bypass allows arbitrary session deletion via transaction API
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.
A flaw was found in Consul. An authenticated caller with network access to the Consul server RPC port could bypass authorization checks. This vulnerability occurs because the system did not enforce the `session:write` Access Control List (ACL) permission f
No detection rules found.
No public exploits indexed.
2026-08-07
Published