CVE-2026-7776
HIGH7.5EPSS 0.03%Hashicorp Boundary workers are vulnerable to a denial-of-service condition during node enrollment TLS handshakes
Published: 5/5/2026Modified: 5/8/2026
Also known as:GHSA-7x9r-wcgg-w86f
Description
Boundary Community Edition and Boundary Enterprise ("Boundary") workers are vulnerable to a denial-of-service condition during node enrollment TLS handshakes. An attacker with network access to the worker authentication listener may open a connection and delay or withhold the client certificate during the TLS handshake, causing worker connection handling to block. This may prevent legitimate worker connections from being accepted or routed. This vulnerability, CVE-2026-7776, is fixed in Boundary 0.21.3, 0.20.3, 0.19.5.
Affected packages (1)
- Go/github.com/hashicorp/boundaryfrom 0, < 0.19.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |