CVE-2026-19017: CWE-862: Missing Authorization in HashiCorp Consul
Consul Community Edition and Consul Enterprise 1.18.21 through 2.0.2 are vulnerable to a partial arbitrary file read when configured to use the Vault Connect CA provider with JWT or AppRole authentication. A privileged attacker with `operator:write` permission may direct Consul to read and forward credential files outside the intended scope, potentially leading to the exfiltration of sensitive secrets from the Consul server host. This vulnerability, CVE-2026-19017, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
AI Analysis
Technical Summary
CVE-2026-19017 is a missing authorization vulnerability (CWE-862) in HashiCorp Consul Community Edition and Enterprise versions 1.18.21 through 2.0.2. When Consul is configured to use the Vault Connect CA provider with JWT or AppRole authentication, an attacker with operator:write privileges can direct Consul to read and forward credential files beyond the intended scope. This can lead to partial arbitrary file reads and potential exfiltration of sensitive secrets from the Consul server host. The vulnerability is addressed in Consul 2.0.3 and Enterprise versions 1.21.17, 1.22.11, and 2.0.3.
Potential Impact
An attacker with operator:write permission can exploit this vulnerability to read and forward credential files outside the intended scope, potentially leading to the exfiltration of sensitive secrets from the Consul server host. The confidentiality of sensitive data is impacted, but integrity and availability are not affected according to the CVSS vector.
Mitigation Recommendations
This vulnerability is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3. Users should upgrade to these versions or later to remediate the issue. No other mitigation guidance is provided, and patch status is confirmed by the vendor advisory information.
CVE-2026-19017: CWE-862: Missing Authorization in HashiCorp Consul
Description
Consul Community Edition and Consul Enterprise 1.18.21 through 2.0.2 are vulnerable to a partial arbitrary file read when configured to use the Vault Connect CA provider with JWT or AppRole authentication. A privileged attacker with `operator:write` permission may direct Consul to read and forward credential files outside the intended scope, potentially leading to the exfiltration of sensitive secrets from the Consul server host. This vulnerability, CVE-2026-19017, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
CVSS v3.1
Score 6.8medium
Affected software
HashiCorp
Consul
HashiCorp
Consul Enterprise
pkg:github/Consul EnterpriseRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-19017 is a missing authorization vulnerability (CWE-862) in HashiCorp Consul Community Edition and Enterprise versions 1.18.21 through 2.0.2. When Consul is configured to use the Vault Connect CA provider with JWT or AppRole authentication, an attacker with operator:write privileges can direct Consul to read and forward credential files beyond the intended scope. This can lead to partial arbitrary file reads and potential exfiltration of sensitive secrets from the Consul server host. The vulnerability is addressed in Consul 2.0.3 and Enterprise versions 1.21.17, 1.22.11, and 2.0.3.
Potential Impact
An attacker with operator:write permission can exploit this vulnerability to read and forward credential files outside the intended scope, potentially leading to the exfiltration of sensitive secrets from the Consul server host. The confidentiality of sensitive data is impacted, but integrity and availability are not affected according to the CVSS vector.
Mitigation Recommendations
This vulnerability is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3. Users should upgrade to these versions or later to remediate the issue. No other mitigation guidance is provided, and patch status is confirmed by the vendor advisory information.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- HashiCorp
- Date Reserved
- 2026-08-05T20:21:43.136Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a763509bf8831d5390b0153
Added to database: 08/07/2026, 19:42:01 UTC
Last enriched: 08/15/2026, 15:11:05 UTC
Last updated: 09/21/2026, 22:01:32 UTC
Views: 69
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.