{ "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-2026-101061", "tracking": { "current_release_date": "2026-09-30T14:39:03.496021Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-101061", "initial_release_date": "2026-09-27T18:25:28.071217Z", "revision_history": [ { "date": "2026-09-27T18:25:28.071217Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-09-27T18:25:36.761123Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-09-28T12:41:23.126237Z", "number": "3", "summary": "CVSS created.| CWES created (1).| Products created (2).| References created (2).| Description created for source.| Unknown change." }, { "date": "2026-09-28T12:41:24.975885Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-09-29T16:13:04.555909Z", "number": "5", "summary": "EPSS created.| Unknown change." }, { "date": "2026-09-29T16:13:08.979925Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-09-30T14:38:41.457492Z", "number": "7", "summary": "Unknown change." } ], "status": "interim", "version": "7" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:semver/1.1.1", "product": { "name": "vers:semver/1.1.1", "product_id": "CSAFPID-9478802" } }, { "category": "product_version_range", "name": "vers:semver/<1.1.1", "product": { "name": "vers:semver/<1.1.1", "product_id": "CSAFPID-9478803" } } ], "category": "product_name", "name": "python-utcp" } ], "category": "vendor", "name": "universal-tool-calling-protocol" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-101061", "cwe": { "id": "CWE-918", "name": "Server-Side Request Forgery (SSRF)" }, "notes": [ { "category": "description", "text": "utcp-gql before 1.1.1 and utcp-websocket before 1.1.1 contain server-side request forgery vulnerabilities due to incomplete application of CVE-2026-44661 fixes. The GraphQL plugin uses a vulnerable prefix check allowing bypass URLs like http://127.0.0.1.attacker.example, while the WebSocket plugin performs no URL validation despite documented security requirements. Attackers can force connections to internal services and cloud metadata endpoints by supplying malicious tool URLs in call templates, and receive configured API keys and OAuth tokens sent to attacker-controlled hosts.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-101061" }, { "category": "description", "text": "utcp-gql before 1.1.1 and utcp-websocket before 1.1.1 contain server-side request forgery vulnerabilities due to incomplete application of CVE-2026-44661 fixes. The GraphQL plugin uses a vulnerable prefix check allowing bypass URLs like http://127.0.0.1.attacker.example, while the WebSocket plugin performs no URL validation despite documented security requirements. Attackers can force connections to internal services and cloud metadata endpoints by supplying malicious tool URLs in call templates, and receive configured API keys and OAuth tokens sent to attacker-controlled hosts.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-101061" }, { "category": "other", "text": "0.00199", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/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": "2.3", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.5", "title": "NCSC Score" }, { "category": "other", "text": "The value of the most recent EPSS score, The value of the mean historic EPSS score", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "There is cwe data available from source Nvd, The value of the most recent CVSS (V3) score", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-9478803" ], "known_not_affected": [ "CSAFPID-9478802" ] }, "references": [ { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101061" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-101061" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-101061" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://github.com/universal-tool-calling-protocol/python-utcp/security/advisories/GHSA-ppx3-28rw-8fpf" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://www.vulncheck.com/advisories/utcp-gql-and-utcp-websocket-before-1.1.1-ssrf-via-url-validation-bypass" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 4.7, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-9478803" ] } ], "title": "CVE-2026-101061" } ] }