highCVSS 7.5Vulnerability
CVE-2026-7776
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.
Properties
- summary
- Hashicorp Boundary workers are vulnerable to a denial-of-service condition during node enrollment TLS handshakes
- severity
- high
- epss_score
- 0.002
- cvss_score
- 7.5
- ghsa_published
- 2026-05-05T00:30:22Z
- source_url
- https://github.com/advisories/GHSA-7x9r-wcgg-w86f
- ghsa_updated
- 2026-05-08T19:01:56Z
- ghsa_id
- GHSA-7x9r-wcgg-w86f
- cve_id
- CVE-2026-7776
- cvss_vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- signal_observed_at
- 2026-09-11T17:55:57+00:00
- is_ghsa_only
- false
- epss_percentile
- 0.10234
Related Entities (5)
ENRICHED_BY (1)
→[Source]FIRST EPSS
REPORTED_BY (1)
→[Source]GitHub Advisory Database
VULNERABLE_TO (1)
←[Software]go/github.com/hashicorp/boundary
AFFECTS (1)
→[Software]go/github.com/hashicorp/boundary
HAS_WEAKNESS (1)
→[Weakness]Allocation of Resources Without Limits or Throttling
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