CVE-2026-19016 (GCVE-0-2026-19016)

Vulnerability from cvelistv5 – Published: 2026-08-07 19:18 – Updated: 2026-08-07 19:18
VLAI
Title
Authorization bypass for session deletion in the transaction API
Summary
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.
Severity
4.2 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory (Path Traversal)
Assigner
References
Impacted products
Vendor Product Version
HashiCorp Consul Affected: 1.19.1 , < 2.0.3 (semver)
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HashiCorp Consul Enterprise Affected: 1.19.1 , < 2.0.3 (semver)
Create a notification for this product.
Credits
This issue was reported by Andres Cruciani.
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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