CVE Catalog

CVE-2026-7776

High
Published: Translated: NVD NIST

Summary

Boundary Community Edition and Boundary Enterprise workers are vulnerable to a denial-of-service attack during TLS handshake for node enrollment. An attacker with network access may delay or withhold the client certificate, causing worker connection handling to block.

Risk Assessment

This vulnerability may prevent legitimate worker connections from being accepted or routed, impacting service availability within the organization.

Recommendation

It is recommended to upgrade to Boundary versions 0.21.3, 0.20.3, or 0.19.5 to mitigate this vulnerability.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS