CVE-2023-3518
JWT Auth in L7 Intentions Allow For Mismatched Service Identity and JWT Providers for Access
HashiCorp Consul and Consul Enterprise 1.16.0 when using JWT Auth for service mesh incorrectly allows/denies access regardless of service identities. Fixed in 1.16.1.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
JWT Auth in L7 Intentions Allow For Mismatched Service Identity and JWT Providers for Access
HashiCorp Consul and Consul Enterprise 1.16.0 when using JWT Auth for service mesh incorrectly allows/denies access regardless of service identities. Fixed in 1.16.1.
- Record
CVE-2023-3518- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - Weakness
- CWE-266
- Updated
- 2026-11-02
EUVDEUVD-2023-2260
HashiCorp Consul and Consul Enterprise 1.16.0 when using JWT Auth for service mesh incorrectly allows/denies access regardless of service identities. Fixed in 1.16.1.
- Record
EUVD-2023-2260- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9rhf-q362-77mx
Consul JWT Auth in L7 Intentions Allow for Mismatched Service Identity and JWT Providers
A vulnerability was identified in Consul such that using JWT authentication for service mesh incorrectly allows/denies access regardless of service identities. This vulnerability, CVE-2023-3518, affects Consul 1.16.0 and was fixed in 1.16.1.
- Record
GHSA-9rhf-q362-77mx- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - Weakness
- CWE-266, CWE-285
- Updated
- 2026-11-02
NVD
HashiCorp Consul and Consul Enterprise 1.16.0 when using JWT Auth for service mesh incorrectly allows/denies access regardless of service identities. Fixed in 1.16.1.
- Record
CVE-2023-3518- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-266
- Updated
- 2026-11-02
OSV
JWT Auth in L7 Intentions Allow For Mismatched Service Identity and JWT Providers for Access
HashiCorp Consul and Consul Enterprise 1.16.0 when using JWT Auth for service mesh incorrectly allows/denies access regardless of service identities. Fixed in 1.16.1.
- Record
CVE-2023-3518- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - Weakness
- CWE-266
- Updated
- 2026-11-02
OSVGHSA-9rhf-q362-77mx
Consul JWT Auth in L7 Intentions Allow for Mismatched Service Identity and JWT Providers
A vulnerability was identified in Consul such that using JWT authentication for service mesh incorrectly allows/denies access regardless of service identities. This vulnerability, CVE-2023-3518, affects Consul 1.16.0 and was fixed in 1.16.1.
- Record
GHSA-9rhf-q362-77mx- CVSS 3.1
- 7.4 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - Weakness
- CWE-266, CWE-285
- Updated
- 2026-11-02
OSVBIT-consul-2023-3518 No score
JWT Auth in L7 Intentions Allow For Mismatched Service Identity and JWT Providers for Access
HashiCorp Consul and Consul Enterprise 1.16.0 when using JWT Auth for service mesh incorrectly allows/denies access regardless of service identities. Fixed in 1.16.1.
- Record
BIT-consul-2023-3518- Updated
- 2026-11-02
OSVGO-2024-2704 No score
Consul JWT Auth in L7 Intentions Allow for Mismatched Service Identity and JWT Providers in github.com/hashicorp/consul
Consul JWT Auth in L7 Intentions Allow for Mismatched Service Identity and JWT Providers in github.com/hashicorp/consul
- Record
GO-2024-2704- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/hashicorp/consulGo |
1.16.0 to 1.16.0 | 1.16.1 |
consulBitnami |
1.16.0 up to 1.16.1 | 1.16.1 |
github.com/hashicorp/consulGo |
1.16.0 up to 1.16.1 | 1.16.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-3518 is a high vulnerability (CVSS 7.4) in Hashicorp Consul, published August 9, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 39th percentile. Fixed in github.com/hashicorp/consul 1.16.1.
References
discuss.hashicorp.com/t/hcsec-2023-25-consul-jwt-auth-in-l7-intentions-allow-for-mismatched-service-identity-and-jwt-providers/57004
nvd.nist.gov/vuln/detail/CVE-2023-3518
github.com/advisories/GHSA-9rhf-q362-77mx