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High severity7.5NVD Advisory· Published May 4, 2026· Updated May 5, 2026

CVE-2026-7776

CVE-2026-7776

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

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
github.com/hashicorp/boundaryGo
< 0.19.50.19.5
github.com/hashicorp/boundaryGo
>= 0.20.0, < 0.20.30.20.3
github.com/hashicorp/boundaryGo
>= 0.21.0, < 0.21.30.21.3

Affected products

1

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

3

News mentions

32