{ "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-2026-28476", "tracking": { "current_release_date": "2026-03-20T09:37:07.260299Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-28476", "initial_release_date": "2026-03-05T22:29:03.189978Z", "revision_history": [ { "date": "2026-03-05T22:29:03.189978Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)." }, { "date": "2026-03-05T22:29:05.702056Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-05T22:38:50.069594Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (1).| References created (3).| CWES updated (1)." }, { "date": "2026-03-05T22:38:54.931819Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-06T00:21:17.104984Z", "number": "5", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (1).| References created (3).| CWES updated (1)." }, { "date": "2026-03-06T00:21:18.762938Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-03-06T06:20:53.068444Z", "number": "7", "summary": "CVSS created.| References created (2)." }, { "date": "2026-03-06T06:21:06.130520Z", "number": "8", "summary": "NCSC Score updated." }, { "date": "2026-03-06T08:05:49.251638Z", "number": "9", "summary": "Source connected.| CVE status created. (valid)| Products connected (1).| References created (69)." }, { "date": "2026-03-06T08:05:51.568780Z", "number": "10", "summary": "NCSC Score updated." }, { "date": "2026-03-06T14:53:01.623086Z", "number": "11", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-06T14:53:03.884083Z", "number": "12", "summary": "NCSC Score updated." }, { "date": "2026-03-06T17:26:06.032660Z", "number": "13", "summary": "CVSS updated." }, { "date": "2026-03-06T17:26:10.537548Z", "number": "14", "summary": "NCSC Score updated." }, { "date": "2026-03-06T17:38:41.785375Z", "number": "15", "summary": "CVSS updated." }, { "date": "2026-03-09T18:39:19.045693Z", "number": "16", "summary": "Unknown change." }, { "date": "2026-03-20T09:37:00.834272Z", "number": "17", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T09:37:04.522231Z", "number": "18", "summary": "NCSC Score updated." } ], "status": "interim", "version": "18" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<2026.2.14", "product": { "name": "vers:unknown/<2026.2.14", "product_id": "CSAFPID-5628215" } } ], "category": "product_name", "name": "OpenClaw" } ], "category": "vendor", "name": "Open Source" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<2026.2.14", "product": { "name": "vers:unknown/<2026.2.14", "product_id": "CSAFPID-5763937" } } ], "category": "product_name", "name": "OpenClaw" } ], "category": "vendor", "name": "OpenClaw" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=0|<2026.2.14", "product": { "name": "vers:unknown/>=0|<2026.2.14", "product_id": "CSAFPID-5626745" } } ], "category": "product_name", "name": "openclaw" } ], "category": "vendor", "name": "openclaw" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-28476", "cwe": { "id": "CWE-918", "name": "Server-Side Request Forgery (SSRF)" }, "notes": [ { "category": "description", "text": "OpenClaw versions prior to 2026.2.14 contain a server-side request forgery vulnerability in the optional Tlon Urbit extension that accepts user-provided base URLs for authentication without proper validation. Attackers who can influence the configured Urbit URL can induce the gateway to make HTTP requests to arbitrary hosts including internal addresses.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-28476" }, { "category": "description", "text": "OpenClaw versions prior to 2026.2.14 contain a server-side request forgery vulnerability in the optional Tlon Urbit extension that accepts user-provided base URLs for authentication without proper validation. Attackers who can influence the configured Urbit URL can induce the gateway to make HTTP requests to arbitrary hosts including internal addresses.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-28476" }, { "category": "description", "text": "## Summary\nThe optional Tlon (Urbit) extension previously accepted a user-provided base URL for authentication and used it to construct an outbound HTTP request, enabling server-side request forgery (SSRF) in affected deployments.\n\n## Impact\nThis only affects deployments that have installed and configured the Tlon (Urbit) extension, and where an attacker can influence the configured Urbit URL. Under those conditions, the gateway could be induced to make HTTP requests to attacker-chosen hosts (including internal addresses).\n\nDeployments that do not use the Tlon extension, or where untrusted users cannot change the Urbit URL, are not impacted.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected versions: `<= 2026.2.13`\n\n## Fixed Versions\n- `2026.2.14` (planned next release)\n\n## Fix Commit(s)\n- `bfa7d21e997baa8e3437657d59b1e296815cc1b1`\n\n## Details\nUrbit authentication now validates and normalizes the base URL and uses an SSRF guard that blocks private/internal hosts by default (opt-in: `channels.tlon.allowPrivateNetwork`).\n\n## Release Process Note\nThis advisory is pre-populated with the planned patched version (`2026.2.14`). After `openclaw@2026.2.14` is published to npm, publish this advisory without further edits.\n\nThanks @p80n-sec for reporting.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/npm%2FGHSA-pg2v-8xwh-qhcc.json?alt=media" }, { "category": "other", "text": "0.00073", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "title": "CVSSV4" }, { "category": "other", "text": "6.3", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.9", "title": "NCSC Score" }, { "category": "other", "text": "There is product data available from source Certbundde", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "The value of the most recent EPSS score, There is cwe data available from source Nvd", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5763937", "CSAFPID-5626745", "CSAFPID-5628215" ] }, "references": [ { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28476" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-28476" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-28476" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/28xxx/CVE-2026-28476.json" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/npm%2FGHSA-pg2v-8xwh-qhcc.json?alt=media" }, { "category": "external", "summary": "Source - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0424.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-28476" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://github.com/openclaw/openclaw/commit/bfa7d21e997baa8e3437657d59b1e296815cc1b1" }, { "category": "external", "summary": "Reference - certbundde; cveprojectv5; nvd; osv", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-pg2v-8xwh-qhcc" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://www.vulncheck.com/advisories/openclaw-server-side-request-forgery-in-tlon-extension-authentication" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/openclaw/openclaw/releases/tag/v2026.2.14" }, { "category": "external", "summary": "Reference - osv", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28476" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0424.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0424" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-33rq-m5x2-fvgf" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-3fqr-4cg8-h96q" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-3hcm-ggvf-rch5" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-3m3q-x3gj-f79x" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-4564-pvr2-qq4h" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-47q7-97xp-m272" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-4hg8-92x6-h2f3" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-4rj2-gpmh-qq5x" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-56f2-hvwg-5743" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-5xfq-5mr7-426q" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-64qx-vpxx-mvqf" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-782p-5fr5-7fj8" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-7q2j-c4q5-rm27" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-7rcp-mxpq-72pj" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-7vwx-582j-j332" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-7xhj-55q9-pc3m" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-8mh7-phf8-xgfm" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-943q-mwmv-hhvh" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-c37p-4qqg-3p76" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-chm2-m3w2-wcxm" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-cv7m-c9jx-vg7q" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-fhvm-j76f-qmjv" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-g27f-9qjv-22pm" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-g34w-4xqq-h79m" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-g6q9-8fvw-f7rf" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-gq9c-wg68-gwj2" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-gv46-4xfq-jv58" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-h3f9-mjwj-w476" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-h89v-j3x9-8wqj" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-h9g4-589h-68xv" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-hv93-r4j3-q65f" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-j27p-hq53-9wgc" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-jfv4-h8mc-jcp8" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-jmm5-fvh5-gf4p" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-jqpq-mgvm-f9r6" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-jrvc-8ff5-2f9f" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-m7x8-2w3w-pr42" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-mj5r-hh7j-4gxf" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-mp5h-m6qj-6292" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-mqpw-46fh-299h" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-mr32-vwc2-5j6h" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-mv9j-6xhh-g383" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-p25h-9q54-ffvw" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-pchc-86f6-8758" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-pv58-549p-qh99" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-q447-rj3r-2cgh" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-qj77-c3c8-9c3q" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-qpjj-47vm-64pj" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-qrq5-wjgg-rvqw" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-qw99-grcx-4pvm" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-r5h9-vjqc-hq3r" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-rmxw-jxxx-4cpc" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-rq6g-px6m-c248" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-rv39-79c4-7459" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-rwj8-p9vq-25gv" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-v6c6-vqqg-w888" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-v773-r54f-q32w" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-v892-hwpg-jwqp" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-w2cg-vxx6-5xjg" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-w5c7-9qqw-6645" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-wfp2-v9c7-fh79" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-x22m-j5qq-j49m" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-xc7w-v5x6-cc87" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-xvhf-x56f-2hpp" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-xw4p-pw82-hqr7" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-xwjm-j929-xq7c" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L", "baseScore": 8.3, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-5626745", "CSAFPID-5628215", "CSAFPID-5763937" ] } ], "title": "CVE-2026-28476" } ] }