CVE-2026-7776 — Boundary Workers Vulnerable to Denial of Service During TLS Handshake
Boundary Community Edition and Boundary Enterprise (“Boundary”) workers are vulnerable to a denial-of-service condition during node enrollment TLS handshakes. An attacker with n…
Published: 2026-05-04 · CVSS: 7.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7