{"id":"CVE-2026-89036","revision":null,"records":[{"revision":"4eca0bc2f09b4da9925e873a28b9f442","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89036","aliases":[],"title":"Appwrite < 2.0.0 Argument Injection via providerRootDirectory Parameter","description":"Appwrite before 2.0.0 contains an argument injection vulnerability that allows authenticated users with functions.write or sites.write permissions to execute arbitrary commands by injecting TAB characters into the providerRootDirectory parameter used to construct GNU tar commands. The application uses escapeshellcmd instead of escapeshellarg and fails to quote the parameter, allowing TAB characters to survive sanitization and be interpreted as argument separators, enabling injection of arbitrary GNU tar arguments such as --checkpoint-action=exec to achieve remote code execution as the builds worker process user.","state":0,"publishedAt":"2026-09-17T15:54:46.106+00:00","modifiedAt":"2026-10-01T15:21:54.929+00:00","affected":[{"ecosystem":"Vendor product","name":"appwrite","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"vendor\": \"appwrite\",\n                    \"product\": \"appwrite\",\n                    \"packageURL\": \"pkg:github/appwrite/appwrite\",\n                    \"repo\": \"https://github.com/appwrite/appwrite\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"2.0.0\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://github.com/appwrite/appwrite/releases#release-2.0.0","https://github.com/appwrite/appwrite/pull/13028","https://github.com/appwrite/appwrite/commit/a82dc6e386a6ac7b88e853a1e6fdb59e0b79ddca","https://www.vulncheck.com/advisories/appwrite-argument-injection-via-providerrootdirectory-parameter"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89036","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89036","identifiers":["CVE-2026-89036"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-11T22:56:48.8843611+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-11T22:56:48.8843611+00:00","lastSuccessAt":"2026-11-11T22:56:49.05921+00:00","error":null,"lastVerifiedAt":"2026-11-11T22:56:49.0592109+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-de3b77103708811b6494d2ff7c979037d73ae579742cd1649a5c765137ae5083-898e28488849fdb15ef1568d1126b1e135cc449eeb5b00fe8f5e0e94343c0306","complete":true,"records":424438,"lastAttemptAt":"2026-11-11T22:56:48.5548519+00:00","lastSuccessAt":"2026-11-11T22:56:48.275736+00:00","error":null,"lastVerifiedAt":"2026-11-11T22:56:48.5548519+00:00","snapshotPublishedAt":"2026-11-11T22:23:10+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-e879cc5fb76844c78c3f92ed84656b7a","complete":false,"records":13760,"lastAttemptAt":"2026-11-11T23:06:58.1195705+00:00","lastSuccessAt":"2026-11-11T23:06:58.115+00:00","error":"420 identifier lookups failed; latest failures include AccessDenied (HTTP 403). Other identifiers were checked independently.","lastVerifiedAt":"2026-11-11T23:06:58.115+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13301,"expectedIdentifiers":13813,"failedIdentifiers":420},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-11T22:56:48.8843611+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-11T22:56:48.8843611+00:00","lastSuccessAt":"2026-11-11T22:56:49.0602607+00:00","error":null,"lastVerifiedAt":"2026-11-11T22:56:49.0602611+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-b9dd8b3871d74cf586e393481617016c","complete":true,"records":13758,"lastAttemptAt":"2026-11-11T22:57:14.2746089+00:00","lastSuccessAt":"2026-11-11T22:57:14.271+00:00","error":null,"lastVerifiedAt":"2026-11-11T22:57:14.271+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13813,"expectedIdentifiers":13813,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-11T22:56:48.8324795+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-11T22:56:48.8324795+00:00","snapshotPublishedAt":"2026-11-11T03:32:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-456002455e0ab94bb92c95476d4e6d175c104cd594749982afd96c893728ecbc","complete":true,"records":2010,"lastAttemptAt":"2026-11-11T22:56:48.6203486+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-11T22:56:48.6203486+00:00","snapshotPublishedAt":"2026-11-11T01:17:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-baa8362b4daf9e5f39d5563775a55935e7b442c0735d33274a921579ce4a0d66","complete":true,"records":3093,"lastAttemptAt":"2026-11-11T22:56:48.8497934+00:00","lastSuccessAt":"2026-11-11T13:00:02.5446881+00:00","error":null,"lastVerifiedAt":"2026-11-11T22:56:48.8497934+00:00","snapshotPublishedAt":"2026-11-11T12:47:47+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-685fe7fb2b690656c910a1ea42a9d294e8353311ac8ecfa691a9b0ff1b328804","complete":true,"records":231695,"lastAttemptAt":"2026-11-11T22:56:48.732015+00:00","lastSuccessAt":"2026-11-11T21:58:47.7265713+00:00","error":null,"lastVerifiedAt":"2026-11-11T22:56:48.732015+00:00","snapshotPublishedAt":"2026-11-11T21:48:35+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}