{"id":"GHSA-qhcq-9pm2-c9w9","revision":null,"records":[{"revision":"b486d3a4a76c472093a74677a26a2dd2","observedAt":"2026-10-23T16:01:20.601+00:00","statement":{"source":"cve-program","id":"CVE-2026-113658","aliases":[],"title":"ApostropheCMS: Unauthenticated CSV import requests leave rejected uploads in the system temporary directory","description":"ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, the unauthenticated Rich Text CSV conversion route writes a multipart upload to the system temporary directory before checking its extension and does not remove the staged file when that validation rejects it. Repeated large rejected uploads, using the normal public CSRF cookie, can persistently consume temporary-disk capacity and may disrupt ApostropheCMS and other services that depend on the same partition. This issue is fixed in version 4.33.0.","state":0,"publishedAt":"2026-10-20T16:56:01.862+00:00","modifiedAt":"2026-10-23T01:55:01.966+00:00","affected":[{"ecosystem":"Vendor product","name":"apostrophe","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"apostrophecms\",\n                    \"product\": \"apostrophe\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 4.33.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-qhcq-9pm2-c9w9","https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce","https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350","https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.33.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-113658","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-113658","identifiers":["CVE-2026-113658"]},"retained":false,"historicalAffected":[]},{"revision":"07bc95ccfa42476482656fe2f9995c3c","observedAt":"2026-11-07T04:34:20.377+00:00","statement":{"source":"euvd","id":"EUVD-2026-105188","aliases":["CVE-2026-113658","GHSA-qhcq-9pm2-c9w9"],"title":"ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, the unauthenticated Rich Text CSV conversion route writes a multipart upload to the system temporary directory before checking its extension and does not re…","description":"ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, the unauthenticated Rich Text CSV conversion route writes a multipart upload to the system temporary directory before checking its extension and does not remove the staged file when that validation rejects it. Repeated large rejected uploads, using the normal public CSRF cookie, can persistently consume temporary-disk capacity and may disrupt ApostropheCMS and other services that depend on the same partition. This issue is fixed in version 4.33.0.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":null}],"references":["https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-qhcq-9pm2-c9w9","https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce","https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350","https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.33.0"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-105188","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 20, 2026, 4:56:01 PM","dateUpdated":"Oct 23, 2026, 1:55:01 AM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-105188","identifiers":["EUVD-2026-105188","CVE-2026-113658","GHSA-qhcq-9pm2-c9w9"]},"retained":false,"historicalAffected":[]},{"revision":"3a18b53907d048a2a22b1b06dbfa1848","observedAt":"2026-10-25T05:17:18.597+00:00","statement":{"source":"nvd","id":"CVE-2026-113658","aliases":[],"title":"ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, the unauthenticated Rich Text CSV conversion route writes a multipart upload to the system temporary directory before checking its extension and does not re…","description":"ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, the unauthenticated Rich Text CSV conversion route writes a multipart upload to the system temporary directory before checking its extension and does not remove the staged file when that validation rejects it. Repeated large rejected uploads, using the normal public CSRF cookie, can persistently consume temporary-disk capacity and may disrupt ApostropheCMS and other services that depend on the same partition. This issue is fixed in version 4.33.0.","state":0,"publishedAt":"2026-10-20T17:17:36.917+00:00","modifiedAt":"2026-10-23T02:16:56.2+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce","https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350","https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.33.0","https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-qhcq-9pm2-c9w9"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-113658","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-400","CWE-459","CWE-770"],"productCriteria":[],"sourceDates":{"published":"2026-10-20T17:17:36.917","lastModified":"2026-10-23T02:16:56.200"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-113658","identifiers":["CVE-2026-113658"]},"retained":false,"historicalAffected":[]},{"revision":"0dd210d871a747bcacb1d20e6ec59709","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-qhcq-9pm2-c9w9","aliases":["CVE-2026-113658"],"title":"ApostropheCMS: Unauthenticated CSV import requests leave rejected uploads in the system temporary directory","description":"### Summary\n\nA rejected upload can remain in the operating system temporary directory.\n\nMulter writes the file before its extension is checked, and the rejection path does not remove that temporary file. An unauthenticated requester can repeat this with large files and steadily consume temporary disk space.\n\n### Details\n\nThe endpoint is:\n\n```text\nPOST /api/v1/@apostrophecms/rich-text-widget/generate-csv-table\n```\n\nIn `packages/apostrophe/modules/@apostrophecms/rich-text-widget/lib/apiRoutes.js`, Multer first writes the upload to `os.tmpdir()`. The handler then rejects filenames whose extension is not `csv`, but there is no cleanup of the Multer file on this error path.\n\nThe route does not require an authenticated user. A normal CSRF cookie is sufficient.\n\nDuring testing, the request returned HTTP 400 with `Only csv files are supported`, while the complete uploaded content remained in a randomly named file in the configured temporary directory after the response.\n\n### Relationship to prior public work\n\nI reviewed [PR #5013](https://github.com/apostrophecms/apostrophe/pull/5013), which migrated the Rich Text CSV upload path from `connect-multiparty` to Multer. This report concerns cleanup after that migration: the rejected Multer file remains on disk, a behavior not described in the PR or its review discussion.\n\n### POC\n\nCreate a small test file. A larger file can be used to demonstrate disk growth, but 1 MiB is enough for a safe local reproduction:\n\n```bash\ndd if=/dev/zero of=rejected.txt bs=1M count=1\n```\n\nObtain the normal site cookies and send the rejected upload:\n\n```bash\ncurl -c cookies.txt 'http://127.0.0.1:3000/' > /dev/null\n\ncurl -i -b cookies.txt \\\n  -F 'file=@rejected.txt;filename=rejected.txt;type=text/plain' \\\n  'http://127.0.0.1:3000/api/v1/@apostrophecms/rich-text-widget/generate-csv-table'\n```\n\nThe response is HTTP 400. Compare the contents of the system temporary directory before and after the request:\n\n```bash\nls -lt /tmp\n```\n\nA new randomly named file remains present and contains the uploaded bytes.\n\nNo login is required. Repeating the multipart request creates additional persistent temporary files.\n\n### Impact\n\nA remote unauthenticated attacker can fill the partition used by the operating system temporary directory. Once that partition is exhausted, Apostrophe and unrelated services on the same host may fail to upload files, create temporary data, or continue operating normally.\n\nThe attack requires only repeated HTTP requests and the stored files remain after each rejected response.","state":0,"publishedAt":"2026-10-20T18:10:32+00:00","modifiedAt":"2026-10-20T18:15:04.5332074+00:00","affected":[{"ecosystem":"npm","name":"apostrophe","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"4.33.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-qhcq-9pm2-c9w9","https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce","https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350","https://github.com/apostrophecms/apostrophe","https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.33.0"],"sourceUrl":"https://github.com/advisories/GHSA-qhcq-9pm2-c9w9","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-qhcq-9pm2-c9w9","identifiers":["GHSA-qhcq-9pm2-c9w9","CVE-2026-113658"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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