{ "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-2026-32236", "tracking": { "current_release_date": "2026-03-23T03:32:20.481589Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-32236", "initial_release_date": "2026-03-12T16:15:34.993751Z", "revision_history": [ { "date": "2026-03-12T16:15:34.993751Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)." }, { "date": "2026-03-12T16:15:43.705793Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-12T19:26:21.289281Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-03-12T19:26:25.056785Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-12T19:38:51.717171Z", "number": "5", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (2).| CWES updated (1)." }, { "date": "2026-03-12T19:38:54.446180Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-03-12T21:38:50.026780Z", "number": "7", "summary": "Unknown change." }, { "date": "2026-03-13T00:28:55.727888Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (4).| Product Identifiers created (2).| Product Remediations created (4).| References created (4).| CWES updated (1)." }, { "date": "2026-03-13T00:29:00.513577Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-03-13T07:37:31.259730Z", "number": "10", "summary": "NCSC Score updated." }, { "date": "2026-03-13T13:39:47.170617Z", "number": "11", "summary": "References created (1)." }, { "date": "2026-03-13T14:13:36.002028Z", "number": "12", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-13T14:13:37.878742Z", "number": "13", "summary": "NCSC Score updated." }, { "date": "2026-03-19T15:30:12.797568Z", "number": "14", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (4).| CWES updated (1)." }, { "date": "2026-03-19T15:30:14.761712Z", "number": "15", "summary": "NCSC Score updated." }, { "date": "2026-03-20T09:31:33.755668Z", "number": "16", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T09:31:37.978244Z", "number": "17", "summary": "NCSC Score updated." } ], "status": "interim", "version": "17" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/1", "product": { "name": "vers:rpm/1", "product_id": "CSAFPID-1508265", "product_identification_helper": { "cpe": "cpe:/a:redhat:rhdh:1" } } } ], "category": "product_name", "name": "Red Hat Developer Hub" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/2", "product": { "name": "vers:rpm/2", "product_id": "CSAFPID-5486263", "product_identification_helper": { "cpe": "cpe:/a:redhat:ansible_portal:2" } } } ], "category": "product_name", "name": "Self-service automation portal 2" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-5486265" } } ], "category": "product_name", "name": "automation-portal" } ], "category": "product_family", "name": "Self-service automation portal 2" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1508266" } } ], "category": "product_name", "name": "rhdh-hub-rhel9" } ], "category": "product_family", "name": "Red Hat Developer Hub" } ], "category": "vendor", "name": "Red Hat" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<0.27.1", "product": { "name": "vers:unknown/<0.27.1", "product_id": "CSAFPID-5810707" } } ], "category": "product_name", "name": "plugin-auth-backend" } ], "category": "vendor", "name": "@backstage" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-32236", "cwe": { "id": "CWE-918", "name": "Server-Side Request Forgery (SSRF)" }, "notes": [ { "category": "description", "text": "### Impact \n \n A Server-Side Request Forgery (SSRF) vulnerability exists in `@backstage/plugin-auth-backend` when `auth.experimentalClientIdMetadataDocuments.enabled` is set to `true`. The CIMD \n metadata fetch validates the initial `client_id` hostname against private IP ranges but does not apply the same validation after HTTP redirects.\n \n The practical impact is limited. The attacker cannot read the response body from the internal request, cannot control request headers or method, and the feature must be explicitly\n enabled via an experimental flag that is off by default. Deployments that restrict `allowedClientIdPatterns` to specific trusted domains are not affected.\n\n ### Patches\n\n Patched in `@backstage/plugin-auth-backend` version `0.27.1`. The fix disables HTTP redirect following when fetching CIMD metadata documents.\n\n ### Workarounds\n\n Disable the experimental CIMD feature by removing or setting `auth.experimentalClientIdMetadataDocuments.enabled` to `false` in your app-config. This is the default configuration.\n Alternatively, restrict `allowedClientIdPatterns` to specific trusted domains rather than using the default wildcard pattern.\n\n ### References\n\n - [IETF Client ID Metadata Document draft](https://datatracker.ietf.org/doc/draft-ietf-oauth-client-id-metadata-document/)\n - [MCP Authorization Specification - Client ID Metadata Documents](https://modelcontextprotocol.io/specification/2025-11-25/basic/authorization#client-id-metadata-documents)", "title": "github - https://github.com/advisories/GHSA-qp4c-xg64-7c6x" }, { "category": "description", "text": "Backstage is an open framework for building developer portals. Prior to 0.27.1, a Server-Side Request Forgery (SSRF) vulnerability exists in @backstage/plugin-auth-backend when auth.experimentalClientIdMetadataDocuments.enabled is set to true. The CIMD\nmetadata fetch validates the initial client_id hostname against private IP ranges but does not apply the same validation after HTTP redirects. The practical impact is limited. The attacker cannot read the response body from the internal request, cannot control request headers or method, and the feature must be explicitly enabled via an experimental flag that is off by default. Deployments that restrict allowedClientIdPatterns to specific trusted domains are not affected. Patched in @backstage/plugin-auth-backend version 0.27.1.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-32236" }, { "category": "description", "text": "Backstage is an open framework for building developer portals. Prior to 0.27.1, a Server-Side Request Forgery (SSRF) vulnerability exists in @backstage/plugin-auth-backend when auth.experimentalClientIdMetadataDocuments.enabled is set to true. The CIMD\nmetadata fetch validates the initial client_id hostname against private IP ranges but does not apply the same validation after HTTP redirects. The practical impact is limited. The attacker cannot read the response body from the internal request, cannot control request headers or method, and the feature must be explicitly enabled via an experimental flag that is off by default. Deployments that restrict allowedClientIdPatterns to specific trusted domains are not affected. Patched in @backstage/plugin-auth-backend version 0.27.1.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-32236" }, { "category": "description", "text": "A server side request forgery flaw has been discovered in the npm @backstage/plugin-auth-backend package. The CIMD metadata fetch validates the initial client_id hostname against private IP ranges but does not apply the same validation after HTTP redirects. The practical impact is limited. The attacker cannot read the response body from the internal request, cannot control request headers or method, and the feature must be explicitly enabled via an experimental flag that is off by default. Deployments that restrict allowedClientIdPatterns to specific trusted domains are not affected.", "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-32236" }, { "category": "description", "text": "### Impact \n \n A Server-Side Request Forgery (SSRF) vulnerability exists in `@backstage/plugin-auth-backend` when `auth.experimentalClientIdMetadataDocuments.enabled` is set to `true`. The CIMD \n metadata fetch validates the initial `client_id` hostname against private IP ranges but does not apply the same validation after HTTP redirects.\n \n The practical impact is limited. The attacker cannot read the response body from the internal request, cannot control request headers or method, and the feature must be explicitly\n enabled via an experimental flag that is off by default. Deployments that restrict `allowedClientIdPatterns` to specific trusted domains are not affected.\n\n ### Patches\n\n Patched in `@backstage/plugin-auth-backend` version `0.27.1`. The fix disables HTTP redirect following when fetching CIMD metadata documents.\n\n ### Workarounds\n\n Disable the experimental CIMD feature by removing or setting `auth.experimentalClientIdMetadataDocuments.enabled` to `false` in your app-config. This is the default configuration.\n Alternatively, restrict `allowedClientIdPatterns` to specific trusted domains rather than using the default wildcard pattern.\n\n ### References\n\n - [IETF Client ID Metadata Document draft](https://datatracker.ietf.org/doc/draft-ietf-oauth-client-id-metadata-document/)\n - [MCP Authorization Specification - Client ID Metadata Documents](https://modelcontextprotocol.io/specification/2025-11-25/basic/authorization#client-id-metadata-documents)", "title": "github - https://api.github.com/advisories/GHSA-qp4c-xg64-7c6x" }, { "category": "other", "text": "0.00039", "title": "EPSS" }, { "category": "other", "text": "4.0", "title": "NCSC Score" }, { "category": "other", "text": "The value of the most recent CVSS (V3) score, Is related to (a version of) an uncommon product, There is cwe data available from source Nvd", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5810707", "CSAFPID-1508265", "CSAFPID-1508266", "CSAFPID-5486263", "CSAFPID-5486265" ] }, "references": [ { "category": "external", "summary": "Source - github", "url": "https://github.com/advisories/GHSA-qp4c-xg64-7c6x" }, { "category": "external", "summary": "Source raw - github", "url": "https://api.github.com/advisories/GHSA-qp4c-xg64-7c6x" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32236" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-32236" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-32236" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/32xxx/CVE-2026-32236.json" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/security/cve/CVE-2026-32236" }, { "category": "external", "summary": "Source raw - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-32236.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-32236" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - github", "url": "https://api.github.com/advisories/GHSA-qp4c-xg64-7c6x" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; redhat", "url": "https://github.com/backstage/backstage/security/advisories/GHSA-qp4c-xg64-7c6x" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; redhat", "url": "https://github.com/backstage/backstage/commit/17038abf2dfdb4abc08a59b1c95af39851de0e07" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-qp4c-xg64-7c6x" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-32236" }, { "category": "external", "summary": "Reference - github; redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32236" } ], "remediations": [ { "category": "mitigation", "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.", "product_ids": [ "CSAFPID-1508265", "CSAFPID-1508266", "CSAFPID-5486263", "CSAFPID-5486265" ] } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:N", "baseScore": 0.0, "baseSeverity": "NONE" }, "products": [ "CSAFPID-1508265", "CSAFPID-1508266", "CSAFPID-5486263", "CSAFPID-5486265", "CSAFPID-5810707" ] } ], "title": "CVE-2026-32236" } ] }