{ "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-2026-32235", "tracking": { "current_release_date": "2026-03-20T18:18:46.700390Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-32235", "initial_release_date": "2026-03-12T16:15:35.211035Z", "revision_history": [ { "date": "2026-03-12T16:15:35.211035Z", "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": "2026-03-12T19:26:10.739412Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (1).| CWES updated (1)." }, { "date": "2026-03-12T19:26:13.735967Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-12T19:38:57.798802Z", "number": "5", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (1).| References created (1).| CWES updated (1)." }, { "date": "2026-03-12T19:39:00.108097Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-03-12T21:38:48.226561Z", "number": "7", "summary": "Unknown change." }, { "date": "2026-03-13T00:28:56.782075Z", "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 (3).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-03-13T00:29:00.513577Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-03-13T13:39:47.384422Z", "number": "10", "summary": "References created (1)." }, { "date": "2026-03-13T14:13:36.174583Z", "number": "11", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-13T14:13:37.878742Z", "number": "12", "summary": "NCSC Score updated." }, { "date": "2026-03-19T15:30:13.301165Z", "number": "13", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (4).| CWES updated (1)." }, { "date": "2026-03-19T15:30:16.365710Z", "number": "14", "summary": "NCSC Score updated." }, { "date": "2026-03-20T09:31:34.685364Z", "number": "15", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T18:18:42.697141Z", "number": "16", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| Product Identifiers created (1).| References created (1).| CWES updated (1)." }, { "date": "2026-03-20T18:18:44.765213Z", "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/<=0.27.0", "product": { "name": "vers:unknown/<=0.27.0", "product_id": "CSAFPID-5873978", "product_identification_helper": { "cpe": "cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "backstage" } ], "category": "vendor", "name": "Linux Foundation" }, { "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-2026-32235", "cwe": { "id": "CWE-601", "name": "URL Redirection to Untrusted Site ('Open Redirect')" }, "notes": [ { "category": "description", "text": "### Impact\n\nThe experimental OIDC provider in `@backstage/plugin-auth-backend` is vulnerable to a redirect URI allowlist bypass. Instances that have enabled experimental Dynamic Client Registration or Client ID Metadata Documents and configured `allowedRedirectUriPatterns` are affected.\n\nA specially crafted redirect URI can pass the allowlist validation while resolving to an attacker-controlled host. If a victim approves the resulting OAuth consent request, their authorization code is sent to the attacker, who can exchange it for a valid access token.\n\nThis requires victim interaction and that one of the experimental features is explicitly enabled, which is not the default.\n\n### Patches\n\nUpgrade to `@backstage/plugin-auth-backend` version 0.27.1 or later.\n\n### Workarounds\n\nDisable experimental Dynamic Client Registration and Client ID Metadata Documents features if they are not required.\n\n### References\n\n- [RFC 6749 Section 3.1.2 - Redirection Endpoint](https://datatracker.ietf.org/doc/html/rfc6749#section-3.1.2)", "title": "github - https://github.com/advisories/GHSA-wqvh-63mv-9w92" }, { "category": "description", "text": "Backstage is an open framework for building developer portals. Prior to 0.27.1, the experimental OIDC provider in @backstage/plugin-auth-backend is vulnerable to a redirect URI allowlist bypass. Instances that have enabled experimental Dynamic Client Registration or Client ID Metadata Documents and configured allowedRedirectUriPatterns are affected. A specially crafted redirect URI can pass the allowlist validation while resolving to an attacker-controlled host. If a victim approves the resulting OAuth consent request, their authorization code is sent to the attacker, who can exchange it for a valid access token. This requires victim interaction and that one of the experimental features is explicitly enabled, which is not the default. This vulnerability is fixed in 0.27.1.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-32235" }, { "category": "description", "text": "Backstage is an open framework for building developer portals. Prior to 0.27.1, the experimental OIDC provider in @backstage/plugin-auth-backend is vulnerable to a redirect URI allowlist bypass. Instances that have enabled experimental Dynamic Client Registration or Client ID Metadata Documents and configured allowedRedirectUriPatterns are affected. A specially crafted redirect URI can pass the allowlist validation while resolving to an attacker-controlled host. If a victim approves the resulting OAuth consent request, their authorization code is sent to the attacker, who can exchange it for a valid access token. This requires victim interaction and that one of the experimental features is explicitly enabled, which is not the default. This vulnerability is fixed in 0.27.1.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-32235" }, { "category": "description", "text": "An allowlist bypass flaw has been discovered in the npm @backstage/plugin-auth-backend package. Instances that have enabled experimental Dynamic Client Registration or Client ID Metadata Documents and configured allowedRedirectUriPatterns are affected. A specially crafted redirect URI can pass the allowlist validation while resolving to an attacker-controlled host. If a victim approves the resulting OAuth consent request, their authorization code is sent to the attacker, who can exchange it for a valid access token. This requires victim interaction and that one of the experimental features is explicitly enabled, which is not the default.", "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-32235" }, { "category": "description", "text": "### Impact\n\nThe experimental OIDC provider in `@backstage/plugin-auth-backend` is vulnerable to a redirect URI allowlist bypass. Instances that have enabled experimental Dynamic Client Registration or Client ID Metadata Documents and configured `allowedRedirectUriPatterns` are affected.\n\nA specially crafted redirect URI can pass the allowlist validation while resolving to an attacker-controlled host. If a victim approves the resulting OAuth consent request, their authorization code is sent to the attacker, who can exchange it for a valid access token.\n\nThis requires victim interaction and that one of the experimental features is explicitly enabled, which is not the default.\n\n### Patches\n\nUpgrade to `@backstage/plugin-auth-backend` version 0.27.1 or later.\n\n### Workarounds\n\nDisable experimental Dynamic Client Registration and Client ID Metadata Documents features if they are not required.\n\n### References\n\n- [RFC 6749 Section 3.1.2 - Redirection Endpoint](https://datatracker.ietf.org/doc/html/rfc6749#section-3.1.2)", "title": "github - https://api.github.com/advisories/GHSA-wqvh-63mv-9w92" }, { "category": "description", "text": "Backstage is an open framework for building developer portals. Prior to 0.27.1, the experimental OIDC provider in @backstage/plugin-auth-backend is vulnerable to a redirect URI allowlist bypass. Instances that have enabled experimental Dynamic Client Registration or Client ID Metadata Documents and configured allowedRedirectUriPatterns are affected. A specially crafted redirect URI can pass the allowlist validation while resolving to an attacker-controlled host. If a victim approves the resulting OAuth consent request, their authorization code is sent to the attacker, who can exchange it for a valid access token. This requires victim interaction and that one of the experimental features is explicitly enabled, which is not the default. This vulnerability is fixed in 0.27.1.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-32235" }, { "category": "other", "text": "0.00032", "title": "EPSS" }, { "category": "other", "text": "4.4", "title": "NCSC Score" }, { "category": "other", "text": "There is product_remediation data available from source Redhat, The value of the most recent EPSS score, Is related to (a version of) an uncommon product", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 2\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-5810707", "CSAFPID-1508265", "CSAFPID-1508266", "CSAFPID-5486263", "CSAFPID-5486265", "CSAFPID-5873978" ] }, "references": [ { "category": "external", "summary": "Source - github", "url": "https://github.com/advisories/GHSA-wqvh-63mv-9w92" }, { "category": "external", "summary": "Source raw - github", "url": "https://api.github.com/advisories/GHSA-wqvh-63mv-9w92" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32235" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-32235" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-32235" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/32xxx/CVE-2026-32235.json" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/security/cve/CVE-2026-32235" }, { "category": "external", "summary": "Source raw - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-32235.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-32235" }, { "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-wqvh-63mv-9w92" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-32235" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; redhat", "url": "https://github.com/backstage/backstage/security/advisories/GHSA-wqvh-63mv-9w92" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/backstage/backstage/commit/6042dd0c7f0706e0f473dafa92799ecf19c825ec" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-wqvh-63mv-9w92" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-32235" }, { "category": "external", "summary": "Reference - github; redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32235" } ], "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:R/S:U/C:H/I:L/A:N", "baseScore": 5.9, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-1508265", "CSAFPID-1508266", "CSAFPID-5486263", "CSAFPID-5486265", "CSAFPID-5810707", "CSAFPID-5873978" ] } ], "title": "CVE-2026-32235" } ] }