CVE-2026-7776: Boundary Workers Vulnerable to Denial of Service During TLS Handshake
HashiCorp · Boundary
Vendor fix available · Affected: HashiCorp Boundary · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 10% of scored CVEs
DescriptionCVE.org
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 products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- HashiCorp · Boundaryfrom 0.9.0 before 0.21.3
- HashiCorp · Boundary Enterprisefrom 0.9.0 before 0.21.3
On the Atlas
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-7776 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.