Description
Consul-k8s versions 0.42.0 and later are vulnerable to a cross-namespace authorization bypass in component ACL binding rules that may allow an attacker to obtain elevated Consul privileges. This vulnerability (CVE-2026-110720) is fixed in consul-k8s 2.1.0 and 1.8.18.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| HashiCorp | Tooling | 0.42.0 – < 2.0.4 | 2.0.4 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
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Ghost-Bx1/ConsulK8s-CVE-2026-110720 ★ 1 · Oct 27, 2026
CVE-2026-110720 - HashiCorp consul-k8s Cross-Namespace ACL Bypass PoC & Exploit
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.