Consul Vulnerable To Reflected XSS On Content-Type Error Manipulation
Priority LOW 27CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-79.
Summary
A vulnerability was identified in Consul and Consul Enterprise such that the server response did not explicitly set a Content-Type HTTP header, allowing user-provided inputs to be misinterpreted and lead to reflected XSS.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00404 34th percentileScored 2026-11-07
Fix Partial Consul (HashiCorp): 1.20.0Consul Enterprise (HashiCorp): 1.20.0+1 more productRed Hat: 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| HashiCorp | Consul | 1.4.1 to before 1.20.0 | 1.20.0 | Patch available | CNA |
| HashiCorp | Consul Enterprise | 1.4.1 to before 1.20.0 | 1.20.0 | Patch available | CNA |
| — | github.com/hashicorp/consul (Go) | 1.4.1 to before 1.20.0 | 1.20.0 | Patch available | GHSA-99wr-c2px-grmh |
- Consul VendorHashiCorp Affected 1.4.1 to before 1.20.0 Fixed in 1.20.0 Patch available CNA
- Consul Enterprise VendorHashiCorp Affected 1.4.1 to before 1.20.0 Fixed in 1.20.0 Patch available CNA
- github.com/hashicorp/consul (Go) Vendor— Affected 1.4.1 to before 1.20.0 Fixed in 1.20.0 Patch available GHSA-99wr-c2px-grmh
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:* | 1.4.1 to before 1.15.15 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:consul:*:*:*:*:community:*:*:* | 1.4.1 to before 1.20.0 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:* | 1.18.0 to before 1.18.5; 1.19.0 to before 1.19.3 | Vulnerable | HashiCorp |
- cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:* Versions 1.4.1 to before 1.15.15 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:consul:*:*:*:*:community:*:*:* Versions 1.4.1 to before 1.20.0 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:* Versions 1.18.0 to before 1.18.5; 1.19.0 to before 1.19.3 Vulnerable ·HashiCorp
Remediation
- Fix · CNA Consul (HashiCorp) Fixed in 1.20.0
- Fix · CNA Consul Enterprise (HashiCorp) Fixed in 1.20.0
- Fix · GHSA-99wr-c2px-grmh github.com/hashicorp/consul (Go) Fixed in 1.20.0 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Dev Spaces | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2024-10086
- 2026-10-03 Alias added: GHSA-99wr-c2px-grmh
References
Advisory 3
More HashiCorp Consul vulnerabilities
- TI-2021-18437 HashiCorp Consul Enterprise before 1.8.17, 1.9.x before 1.9.11, and 1.10.x before 1.10.4… CVSS 3.1HIGH 8.8
- TI-2022-11698 HashiCorp Consul and Consul Enterprise up to 1.9.16, 1.10.9, and 1.11.4 may allow server… CVSS 3.1HIGH 7.5
- TI-2021-02215 An issue was discovered in GoGo Protobuf before 1.3.2. CVSS 3.1HIGH 8.6
- TI-2024-09286 Consul L7 Intentions Vulnerable To Headers Bypass CVSS 3.1HIGH 8.3
- TI-2023-02638 Consul Envoy Extension Downsteam Proxy Configuration By Upstream Service Owner CVSS 3.1HIGH 8.7
- TI-2022-03595 Consul Peering Imported Nodes/Services Leak CVSS 3.1HIGH 7.5
Sources
- CVE-2024-10086 · CVE Program
- CVE-2024-10086 · NVD
- FIRST EPSS
- GHSA-99wr-c2px-grmh · GitHub Advisory Database · CC BY 4.0
- CVE-2024-10086 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences