{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-32946", "tracking": { "current_release_date": "2026-03-25T10:03:36.241849Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-32946", "initial_release_date": "2026-03-17T19:12:01.329364Z", "revision_history": [ { "date": "2026-03-17T19:12:01.329364Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)." }, { "date": "2026-03-19T03:27:12.385816Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-19T11:40:26.428911Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)." }, { "date": "2026-03-20T18:25:03.814259Z", "number": "4", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (2).| CWES updated (1)." }, { "date": "2026-03-20T18:25:07.800019Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-03-20T18:29:46.874294Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-03-20T18:29:48.974623Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-03-20T18:35:31.501957Z", "number": "8", "summary": "Unknown change." }, { "date": "2026-03-20T21:41:45.442449Z", "number": "9", "summary": "References created (1)." }, { "date": "2026-03-20T21:59:18.810691Z", "number": "10", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T21:59:22.532339Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-03-21T00:28:53.642195Z", "number": "12", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (16).| Product Identifiers created (4).| References created (4).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-03-21T00:28:58.053375Z", "number": "13", "summary": "NCSC Score updated." }, { "date": "2026-03-21T13:47:30.792425Z", "number": "14", "summary": "References removed (1)." }, { "date": "2026-03-22T00:51:56.978602Z", "number": "15", "summary": "References created (1)." }, { "date": "2026-03-22T11:24:58.625537Z", "number": "16", "summary": "References removed (1)." }, { "date": "2026-03-23T00:54:08.379943Z", "number": "17", "summary": "References created (1)." }, { "date": "2026-03-23T05:16:04.301401Z", "number": "18", "summary": "References removed (1)." }, { "date": "2026-03-24T20:49:56.153422Z", "number": "19", "summary": "CVSS created.| Products connected (1).| Product Identifiers created (1)." }, { "date": "2026-03-24T20:49:58.923633Z", "number": "20", "summary": "NCSC Score updated." }, { "date": "2026-03-24T20:56:31.730304Z", "number": "21", "summary": "References created (1)." } ], "status": "interim", "version": "21" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/1", "product": { "name": "vers:rpm/1", "product_id": "CSAFPID-5207390", "product_identification_helper": { "cpe": "cpe:/a:redhat:external_secrets_operator:1" } } } ], "category": "product_name", "name": "External Secrets Operator for Red Hat OpenShift" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/3", "product": { "name": "vers:rpm/3", "product_id": "CSAFPID-2914692", "product_identification_helper": { "cpe": "cpe:/a:redhat:gatekeeper:3" } } } ], "category": "product_name", "name": "Gatekeeper 3" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1441056", "product_identification_helper": { "cpe": "cpe:/a:redhat:multicluster_engine" } } } ], "category": "product_name", "name": "Multicluster Engine for Kubernetes" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2858789", "product_identification_helper": { "cpe": "cpe:/a:redhat:windows_machine_config" } } } ], "category": "product_name", "name": "Red Hat OpenShift for Windows Containers" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2485098" } } ], "category": "product_name", "name": "addon-manager-rhel9" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2914728" } } ], "category": "product_name", "name": "placement-rhel9" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2914731" } } ], "category": "product_name", "name": "registration-operator-rhel9" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2914732" } } ], "category": "product_name", "name": "registration-rhel9" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2914733" } } ], "category": "product_name", "name": "work-rhel9" } ], "category": "product_family", "name": "Multicluster Engine for Kubernetes" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-5264795" } } ], "category": "product_name", "name": "bitwarden-sdk-server-rhel9" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-5264796" } } ], "category": "product_name", "name": "external-secrets-operator-bundle" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-5264797" } } ], "category": "product_name", "name": "external-secrets-operator-rhel9" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-5207391" } } ], "category": "product_name", "name": "external-secrets-rhel9" } ], "category": "product_family", "name": "External Secrets Operator for Red Hat OpenShift" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2914693" } } ], "category": "product_name", "name": "gatekeeper-rhel9" } ], "category": "product_family", "name": "Gatekeeper 3" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2858790" } } ], "category": "product_name", "name": "windows-machine-config-operator-bundle" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2858791" } } ], "category": "product_name", "name": "windows-machine-config-rhel9-operator" } ], "category": "product_family", "name": "Red Hat OpenShift for Windows Containers" } ], "category": "vendor", "name": "Red Hat" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<2.16.0", "product": { "name": "vers:unknown/<2.16.0", "product_id": "CSAFPID-5874401" } } ], "category": "product_name", "name": "harden-runner" } ], "category": "vendor", "name": "step-security" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<2.16.0", "product": { "name": "vers:unknown/<2.16.0", "product_id": "CSAFPID-5902393", "product_identification_helper": { "cpe": "cpe:2.3:a:stepsecurity:harden-runner:*:*:*:*:community:*:*:*" } } } ], "category": "product_name", "name": "harden-runner" } ], "category": "vendor", "name": "stepsecurity" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-32946", "cwe": { "id": "CWE-863", "name": "Incorrect Authorization" }, "notes": [ { "category": "description", "text": "## Summary\n\nA vulnerability exists in the Community Tier of Harden-Runner that allows bypassing the `egress-policy: block` network restriction using DNS queries over TCP.\n\nHarden-Runner enforces egress policies on GitHub runners by filtering outbound connections at the network layer. When `egress-policy: block` is enabled with a restrictive allowed-endpoints list (e.g., only `github.com:443`), all non-compliant traffic should be denied. However, DNS queries over TCP, commonly used for large responses or fallback from UDP, are not adequately restricted. Tools like `dig` can explicitly initiate TCP-based DNS queries (`+tcp` flag) without being blocked. \n\nThis vulnerability requires the attacker to already have code execution capabilities within the GitHub Actions workflow.\n\nThe Enterprise Tier of Harden-Runner is **not affected** by this vulnerability.\n\n## Impact\n\nWhen Harden-Runner is configured with `egress-policy: block` and a restrictive `allowed-endpoints` list, an attacker with existing code execution capabilities within a GitHub Actions workflow can bypass the egress block policy by initiating DNS queries over TCP to external resolvers. This allows outbound network communication that evades the configured network restrictions.\n\nThis vulnerability affects only the Community Tier. It requires the attacker to already have code execution capabilities within the GitHub Actions workflow.\n\n## Remediation\n\n### For Community Tier Users\n\nUpgrade to Harden-Runner v2.16.0 or later. \n\n### For Enterprise Tier Users\n\nNo action required. Enterprise tier customers are not affected by this vulnerability.\n\n## Credit \n\nWe would like to thank [Devansh Batham](https://github.com/devanshbatham) for responsibly disclosing this vulnerability through our security reporting process.", "title": "github - https://github.com/advisories/GHSA-g699-3x6g-wm3g" }, { "category": "description", "text": "## Summary\n\nA vulnerability exists in the Community Tier of Harden-Runner that allows bypassing the `egress-policy: block` network restriction using DNS queries over TCP.\n\nHarden-Runner enforces egress policies on GitHub runners by filtering outbound connections at the network layer. When `egress-policy: block` is enabled with a restrictive allowed-endpoints list (e.g., only `github.com:443`), all non-compliant traffic should be denied. However, DNS queries over TCP, commonly used for large responses or fallback from UDP, are not adequately restricted. Tools like `dig` can explicitly initiate TCP-based DNS queries (`+tcp` flag) without being blocked. \n\nThis vulnerability requires the attacker to already have code execution capabilities within the GitHub Actions workflow.\n\nThe Enterprise Tier of Harden-Runner is **not affected** by this vulnerability.\n\n## Impact\n\nWhen Harden-Runner is configured with `egress-policy: block` and a restrictive `allowed-endpoints` list, an attacker with existing code execution capabilities within a GitHub Actions workflow can bypass the egress block policy by initiating DNS queries over TCP to external resolvers. This allows outbound network communication that evades the configured network restrictions.\n\nThis vulnerability affects only the Community Tier. It requires the attacker to already have code execution capabilities within the GitHub Actions workflow.\n\n## Remediation\n\n### For Community Tier Users\n\nUpgrade to Harden-Runner v2.16.0 or later. \n\n### For Enterprise Tier Users\n\nNo action required. Enterprise tier customers are not affected by this vulnerability.\n\n## Credit \n\nWe would like to thank [Devansh Batham](https://github.com/devanshbatham) for responsibly disclosing this vulnerability through our security reporting process.", "title": "github - https://api.github.com/advisories/GHSA-g699-3x6g-wm3g" }, { "category": "description", "text": "Harden-Runner is a CI/CD security agent that works like an EDR for GitHub Actions runners. In versions 2.15.1 and below, the Harden-Runner that allows bypass of the egress-policy: block network restriction using DNS queries over TCP. Egress policies are enforced on GitHub runners by filtering outbound connections at the network layer. When egress-policy: block is enabled with a restrictive allowed-endpoints list (e.g., only github.com:443), all non-compliant traffic should be denied. However, DNS queries over TCP, commonly used for large responses or fallback from UDP, are not adequately restricted. Tools like dig can explicitly initiate TCP-based DNS queries (+tcp flag) without being blocked. This vulnerability requires the attacker to already have code execution capabilities within the GitHub Actions workflow. The issue has been fixed in version 2.16.0.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/32xxx/CVE-2026-32946.json" }, { "category": "description", "text": "Harden-Runner is a CI/CD security agent that works like an EDR for GitHub Actions runners. In versions 2.15.1 and below, the Harden-Runner that allows bypass of the egress-policy: block network restriction using DNS queries over TCP. Egress policies are enforced on GitHub runners by filtering outbound connections at the network layer. When egress-policy: block is enabled with a restrictive allowed-endpoints list (e.g., only github.com:443), all non-compliant traffic should be denied. However, DNS queries over TCP, commonly used for large responses or fallback from UDP, are not adequately restricted. Tools like dig can explicitly initiate TCP-based DNS queries (+tcp flag) without being blocked. This vulnerability requires the attacker to already have code execution capabilities within the GitHub Actions workflow. The issue has been fixed in version 2.16.0.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-32946" }, { "category": "description", "text": "A flaw was found in Harden-Runner, a security agent for GitHub Actions runners. An attacker with existing code execution capabilities within a GitHub Actions workflow can bypass network egress policies, which are security measures designed to control outbound network connections. This bypass occurs by utilizing DNS queries over TCP, allowing unauthorized network communication despite restrictive egress policies.", "title": "redhat - https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-32946.json" }, { "category": "other", "text": "0.00076", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N", "title": "CVSSV4" }, { "category": "other", "text": "4.6", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.0", "title": "NCSC Score" }, { "category": "other", "text": "The value of the most recent CVSS (V3) score, The value of the most recent EPSS score, There is cwe data available from source Redhat", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 2\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-5874401", "CSAFPID-1441056", "CSAFPID-2485098", "CSAFPID-2858789", "CSAFPID-2858790", "CSAFPID-2858791", "CSAFPID-2914692", "CSAFPID-2914693", "CSAFPID-2914728", "CSAFPID-2914731", "CSAFPID-2914732", "CSAFPID-2914733", "CSAFPID-5207390", "CSAFPID-5207391", "CSAFPID-5264795", "CSAFPID-5264796", "CSAFPID-5264797", "CSAFPID-5902393" ] }, "references": [ { "category": "external", "summary": "Source - github", "url": "https://github.com/advisories/GHSA-g699-3x6g-wm3g" }, { "category": "external", "summary": "Source raw - github", "url": "https://api.github.com/advisories/GHSA-g699-3x6g-wm3g" }, { "category": "external", "summary": "Source - github", "url": "https://api.github.com/advisories/GHSA-g699-3x6g-wm3g" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/32xxx/CVE-2026-32946.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-32946" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-32946.json" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; redhat", "url": "https://github.com/step-security/harden-runner/security/advisories/GHSA-g699-3x6g-wm3g" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; redhat", "url": "https://github.com/step-security/harden-runner/releases/tag/v2.16.0" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-g699-3x6g-wm3g" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-32946" }, { "category": "external", "summary": "Reference - github; redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32946" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N", "baseScore": 4.9, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-1441056", "CSAFPID-2485098", "CSAFPID-2858789", "CSAFPID-2858790", "CSAFPID-2858791", "CSAFPID-2914692", "CSAFPID-2914693", "CSAFPID-2914728", "CSAFPID-2914731", "CSAFPID-2914732", "CSAFPID-2914733", "CSAFPID-5207390", "CSAFPID-5207391", "CSAFPID-5264795", "CSAFPID-5264796", "CSAFPID-5264797", "CSAFPID-5874401", "CSAFPID-5902393" ] } ], "title": "CVE-2026-32946" } ] }