CVE-2019-8336 json
HashiCorp Consul Access Restriction Bypass
published 2019-03-05 7 y ago modified 2026-06-17 4 mo ago also GHSA-fhm8-cxcv-pwvc , GO-2023-1945 , EUVD-2022-3787
- cvss
- 8.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 69%
- public exploits
- 0
- none known
Summary
HashiCorp Consul (and Consul Enterprise) 1.4.x before 1.4.3 allows a client to bypass intended access restrictions and obtain the privileges of one other arbitrary token within secondary datacenters, because a token with literally "<hidden>" as its secret is used in unusual circumstances.
Patch / fix
- go github.com/hashicorp/consul 1.4.3
- hashicorp consul 1.4.3
Exploit prediction
1.25% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| GitHub | 3.0 | 8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/hashicorp/consul | >=1.4.0, <1.4.3 |
1.4.3 |
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
github.com
/hashicorp/consul/commit/90040f8bffb311e6cd8599273e95b607175e311f
web, patch
-
github.com
/hashicorp/consul/issues/5423
web, mitigation, third-party-advisory, report
-
nvd.nist.gov
/vuln/detail/CVE-2019-8336
advisory
-
github.com
/hashicorp/consul
package
-
github.com
/hashicorp/consul/blob/003370ded024096cd89fb2aa2bc15293c23b9707/agent/consul/leader.go#L405
web
-
github.com
/advisories/GHSA-fhm8-cxcv-pwvc
advisory
Sources
- CVE List CVE-2019-8336
- GitHub Advisory GHSA-fhm8-cxcv-pwvc
- NVD CVE-2019-8336
- OSV GO-2023-1945
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.