{"answers":{"affected":"7 open source packages ship an affected version, including github.com/hashicorp/boundary.","exploited":"There is no known exploitation of CVE-2026-7776 in the wild and no public exploit code.","fix":"Upgrade github.com/hashicorp/boundary to a fixed version for your release line: 0.19.5, 0.20.3 or 0.21.3.","what":"CVE-2026-7776 is a high-severity denial of service vulnerability in HashiCorp Boundary, published on 4 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-7776 and fix it if it is affected.\n\nWhat it is: CVE-2026-7776 is a high-severity denial of service vulnerability in HashiCorp Boundary, published on 4 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-7776 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/hashicorp/boundary (Go): affected all versions; fixed in 0.19.5, 0.20.3, 0.21.3\n- github.com/hashicorp/boundary (Go): affected all versions; fixed in 0.19.5\n- github.com/hashicorp/boundary (Go): affected all versions; fixed in 0.19.5\n- github.com/hashicorp/boundary (Go): affected from 0.20.0; fixed in 0.20.3\n- github.com/hashicorp/boundary (Go): affected from 0.20.0; fixed in 0.20.3\n- github.com/hashicorp/boundary (Go): affected from 0.21.0; fixed in 0.21.3\n- github.com/hashicorp/boundary (Go): affected from 0.21.0; fixed in 0.21.3\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-7776/ (Markdown: https://insights.sbomify.com/CVE-2026-7776/index.md)","id":"CVE-2026-7776","markdown":"https://insights.sbomify.com/CVE-2026-7776/index.md","name":"CVE-2026-7776","record":{"aliases":["GHSA-7x9r-wcgg-w86f","GO-2026-5237"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"HashiCorp Boundary","requires_auth":"none","summary":"Attackers can cause denial of service in Boundary workers by delaying TLS handshakes, blocking legitimate connections.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"HashiCorp","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"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.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Boundary Workers Vulnerable to Denial of Service During TLS Handshake","id":"CVE-2026-7776","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":7,"n_references":1,"next":{"headline":"runZero Platform dashboard configuration exposure","id":"CVE-2026-7778"},"packages":[{"ecosystem":"Go","fixed":["0.19.5","0.20.3","0.21.3"],"introduced":["0","0.20.0","0.21.0"],"last_affected":[],"package":"github.com/hashicorp/boundary","purl":"pkg:golang/github.com/hashicorp/boundary","source":"GO-2026-5237"},{"ecosystem":"Go","fixed":["0.19.5"],"introduced":["0"],"last_affected":[],"package":"github.com/hashicorp/boundary","purl":null,"source":"GHSA-7x9r-wcgg-w86f"},{"ecosystem":"Go","fixed":["0.19.5"],"introduced":["0"],"last_affected":[],"package":"github.com/hashicorp/boundary","purl":"pkg:golang/github.com/hashicorp/boundary","source":"GHSA-7x9r-wcgg-w86f"},{"ecosystem":"Go","fixed":["0.20.3"],"introduced":["0.20.0"],"last_affected":[],"package":"github.com/hashicorp/boundary","purl":null,"source":"GHSA-7x9r-wcgg-w86f"},{"ecosystem":"Go","fixed":["0.20.3"],"introduced":["0.20.0"],"last_affected":[],"package":"github.com/hashicorp/boundary","purl":"pkg:golang/github.com/hashicorp/boundary","source":"GHSA-7x9r-wcgg-w86f"},{"ecosystem":"Go","fixed":["0.21.3"],"introduced":["0.21.0"],"last_affected":[],"package":"github.com/hashicorp/boundary","purl":null,"source":"GHSA-7x9r-wcgg-w86f"},{"ecosystem":"Go","fixed":["0.21.3"],"introduced":["0.21.0"],"last_affected":[],"package":"github.com/hashicorp/boundary","purl":"pkg:golang/github.com/hashicorp/boundary","source":"GHSA-7x9r-wcgg-w86f"}],"prev":{"headline":"Cross-site Scripting Security Vulnerability in IBM Sterling B2B Integrator and IBM Sterling File Gateway","id":"CVE-2026-7775"},"products":["Boundary","Boundary Enterprise"],"published":"2026-05-04","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-05","vendors":["HashiCorp"]},"summary":"Attackers can cause denial of service in Boundary workers by delaying TLS handshakes, blocking legitimate connections.","url":"https://insights.sbomify.com/CVE-2026-7776/"}