{ "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-2026-28512", "tracking": { "current_release_date": "2026-03-26T01:37:08.158231Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-28512", "initial_release_date": "2026-03-09T17:39:49.710279Z", "revision_history": [ { "date": "2026-03-09T17:39:49.710279Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)." }, { "date": "2026-03-09T17:39:52.600537Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-09T18:12:47.145566Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (2).| CWES updated (1)." }, { "date": "2026-03-09T18:12:48.841034Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-09T22:38:42.805333Z", "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": "2026-03-09T22:38:46.598814Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-03-10T07:35:03.919072Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-03-10T14:22:36.397175Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-10T15:38:48.275792Z", "number": "9", "summary": "Unknown change." }, { "date": "2026-03-10T18:30:15.809517Z", "number": "10", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-03-10T18:30:26.809083Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-03-10T19:58:30.243219Z", "number": "12", "summary": "References created (1)." }, { "date": "2026-03-11T00:14:15.773848Z", "number": "13", "summary": "References created (1)." }, { "date": "2026-03-12T08:30:11.431469Z", "number": "14", "summary": "NCSC Score updated." }, { "date": "2026-03-13T16:25:21.427485Z", "number": "15", "summary": "Products created (1).| Product Identifiers created (1)." }, { "date": "2026-03-13T16:25:29.593308Z", "number": "16", "summary": "NCSC Score updated." }, { "date": "2026-03-13T16:49:03.903139Z", "number": "17", "summary": "NCSC Score updated." }, { "date": "2026-03-19T15:28:59.654023Z", "number": "18", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (4).| CWES updated (1)." }, { "date": "2026-03-19T15:29:01.534231Z", "number": "19", "summary": "NCSC Score updated." }, { "date": "2026-03-20T09:36:52.377051Z", "number": "20", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T09:36:54.843713Z", "number": "21", "summary": "NCSC Score updated." }, { "date": "2026-03-25T18:15:14.357028Z", "number": "22", "summary": "Source created.| CVE status created. (valid)| Description created for source.| References created (3)." }, { "date": "2026-03-25T21:45:09.338676Z", "number": "23", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (6).| References created (4).| CWES updated (1)." } ], "status": "interim", "version": "23" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=0|<0.0.0-20260228130835-3a339e33191c", "product": { "name": "vers:unknown/>=0|<0.0.0-20260228130835-3a339e33191c", "product_id": "CSAFPID-5771902" } }, { "category": "product_version_range", "name": "vers:unknown/>=2.0.0|<2.4.0", "product": { "name": "vers:unknown/>=2.0.0|<2.4.0", "product_id": "CSAFPID-5772712" } }, { "category": "product_version_range", "name": "vers:unknown/v2.0.0", "product": { "name": "vers:unknown/v2.0.0", "product_id": "CSAFPID-5909558" } }, { "category": "product_version_range", "name": "vers:unknown/v2.0.1", "product": { "name": "vers:unknown/v2.0.1", "product_id": "CSAFPID-5909559" } }, { "category": "product_version_range", "name": "vers:unknown/v2.0.2", "product": { "name": "vers:unknown/v2.0.2", "product_id": "CSAFPID-5909560" } }, { "category": "product_version_range", "name": "vers:unknown/v2.1.0", "product": { "name": "vers:unknown/v2.1.0", "product_id": "CSAFPID-5909561" } }, { "category": "product_version_range", "name": "vers:unknown/v2.2.0", "product": { "name": "vers:unknown/v2.2.0", "product_id": "CSAFPID-5909562" } }, { "category": "product_version_range", "name": "vers:unknown/v2.3.0", "product": { "name": "vers:unknown/v2.3.0", "product_id": "CSAFPID-5909563" } } ], "category": "product_name", "name": "pocket-id" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=2.0.0|<2.4.0", "product": { "name": "vers:unknown/>=2.0.0|<2.4.0", "product_id": "CSAFPID-5815180", "product_identification_helper": { "cpe": "cpe:2.3:a:pocket-id:pocket_id:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "pocket_id" } ], "category": "vendor", "name": "pocket-id" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-28512", "cwe": { "id": "CWE-601", "name": "URL Redirection to Untrusted Site ('Open Redirect')" }, "notes": [ { "category": "description", "text": "### Impact\nA flaw in callback URL validation allowed crafted `redirect_uri` values containing URL userinfo (`@`) to bypass legitimate callback pattern checks. If an attacker can trick a user into opening a malicious authorization link, the authorization code may be redirected to an attacker-controlled host.\n\n### Patches\nFixed in `v2.3.1` (commit 3a339e33191c31b68bf57db907f800d9de5ffbc8).\nThe fix replaces delimiter-based callback matching with structured URL pattern matching and updates validation logic/tests.\n\n### Workarounds\n- Reject callback URLs containing userinfo (`@`) at reverse proxy / app policy level if feasible.", "title": "github - https://github.com/advisories/GHSA-9h33-g3ww-mqff" }, { "category": "description", "text": "### Impact\nA flaw in callback URL validation allowed crafted `redirect_uri` values containing URL userinfo (`@`) to bypass legitimate callback pattern checks. If an attacker can trick a user into opening a malicious authorization link, the authorization code may be redirected to an attacker-controlled host.\n\n### Patches\nFixed in `v2.3.1` (commit 3a339e33191c31b68bf57db907f800d9de5ffbc8).\nThe fix replaces delimiter-based callback matching with structured URL pattern matching and updates validation logic/tests.\n\n### Workarounds\n- Reject callback URLs containing userinfo (`@`) at reverse proxy / app policy level if feasible.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/Go%2FGHSA-9h33-g3ww-mqff.json?alt=media" }, { "category": "description", "text": "Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to your services. From 2.0.0 to before 2.4.0, a flaw in callback URL validation allowed crafted redirect_uri values containing URL userinfo (@) to bypass legitimate callback pattern checks. If an attacker can trick a user into opening a malicious authorization link, the authorization code may be redirected to an attacker-controlled host. This vulnerability is fixed in 2.4.0.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-28512" }, { "category": "description", "text": "Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to your services. From 2.0.0 to before 2.4.0, a flaw in callback URL validation allowed crafted redirect_uri values containing URL userinfo (@) to bypass legitimate callback pattern checks. If an attacker can trick a user into opening a malicious authorization link, the authorization code may be redirected to an attacker-controlled host. This vulnerability is fixed in 2.4.0.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-28512" }, { "category": "description", "text": "### Impact\nA flaw in callback URL validation allowed crafted `redirect_uri` values containing URL userinfo (`@`) to bypass legitimate callback pattern checks. If an attacker can trick a user into opening a malicious authorization link, the authorization code may be redirected to an attacker-controlled host.\n\n### Patches\nFixed in `v2.3.1` (commit 3a339e33191c31b68bf57db907f800d9de5ffbc8).\nThe fix replaces delimiter-based callback matching with structured URL pattern matching and updates validation logic/tests.\n\n### Workarounds\n- Reject callback URLs containing userinfo (`@`) at reverse proxy / app policy level if feasible.", "title": "github - https://api.github.com/advisories/GHSA-9h33-g3ww-mqff" }, { "category": "description", "text": "Pocket ID: OAuth redirect_uri validation bypass via userinfo/host confusion in github.com/pocket-id/pocket-id/backend", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/Go%2FGO-2026-4653.json?alt=media" }, { "category": "description", "text": "Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to your services. From 2.0.0 to before 2.4.0, a flaw in callback URL validation allowed crafted redirect_uri values containing URL userinfo (@) to bypass legitimate callback pattern checks. If an attacker can trick a user into opening a malicious authorization link, the authorization code may be redirected to an attacker-controlled host. This vulnerability is fixed in 2.4.0.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-28512.json?alt=media" }, { "category": "other", "text": "0.00014", "title": "EPSS" }, { "category": "other", "text": "4.7", "title": "NCSC Score" }, { "category": "other", "text": "There is product data available from source Cveprojectv5", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "The value of the most recent EPSS score", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5771902", "CSAFPID-5772712", "CSAFPID-5815180", "CSAFPID-5909558", "CSAFPID-5909559", "CSAFPID-5909560", "CSAFPID-5909561", "CSAFPID-5909562", "CSAFPID-5909563" ] }, "references": [ { "category": "external", "summary": "Source - github", "url": "https://github.com/advisories/GHSA-9h33-g3ww-mqff" }, { "category": "external", "summary": "Source raw - github", "url": "https://api.github.com/advisories/GHSA-9h33-g3ww-mqff" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/Go%2FGHSA-9h33-g3ww-mqff.json?alt=media" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-28512" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/28xxx/CVE-2026-28512.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-28512" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28512" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-28512" }, { "category": "external", "summary": "Source - github", "url": "https://api.github.com/advisories/GHSA-9h33-g3ww-mqff" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/Go%2FGO-2026-4653.json?alt=media" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-28512.json?alt=media" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; osv", "url": "https://github.com/pocket-id/pocket-id/security/advisories/GHSA-9h33-g3ww-mqff" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; osv", "url": "https://github.com/pocket-id/pocket-id/commit/3a339e33191c31b68bf57db907f800d9de5ffbc8" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-9h33-g3ww-mqff" }, { "category": "external", "summary": "Reference - github; osv", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28512" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28512.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N", "baseScore": 7.1, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-5771902", "CSAFPID-5772712", "CSAFPID-5815180", "CSAFPID-5909558", "CSAFPID-5909559", "CSAFPID-5909560", "CSAFPID-5909561", "CSAFPID-5909562", "CSAFPID-5909563" ] } ], "title": "CVE-2026-28512" } ] }