{"id":"CVE-2026-81914","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-81914","generatedAt":"2026-10-28T01:02:41.833Z","title":"A name containing an apostrophe therefore terminated the literal early and appended clauses of the attacker's choosing to the query.","description":"Apache Airflow's Google provider built Google Drive search expressions by interpolating file and folder names directly into single-quoted string literals, without escaping the quote character that delimits them. A name containing an apostrophe therefore terminated the literal early and appended clauses of the attacker's choosing to the query.\n\nThe names are frequently not written by the Dag author. In a wildcard `gcs_to_gdrive` transfer they come from the source bucket listing, so anyone able to create objects in that bucket controls them — typically an external data producer or an ingest-only service account, a different trust principal from the Dag author. An injected clause can broaden the match and so steer which file or folder the hook resolves: an upload can be directed into a folder the attacker named, and, because downloads select the most recently modified match, a download can return a file they placed rather than the one the Dag asked for.\n\nAffects deployments passing externally-sourced names to the Google Drive hook, including wildcard `gcs_to_gdrive` transfers from buckets writable by less-trusted principals. Users are advised to upgrade to `apache-airflow-providers-google` `22.6.0` or later, which escapes quote and backslash characters in every value interpolated into a Drive query.","published":"2026-09-29T10:17:13.000Z","lastModified":"2026-10-07T19:58:48.000Z","status":"Analyzed","sourceIdentifier":"security@apache.org","cvss":{"version":"3.1","score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-943"],"affected":["apache/apache-airflow-providers-google"],"epss":{"score":0.0047,"percentile":0.40436,"date":"2026-10-26","history":[{"date":"2026-09-29","score":0.00201,"percentile":0.08917}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.47%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-09-29T22:30:10.000Z","detail":{"from":null,"score":"4.3","severity":"MEDIUM","fromSeverity":null},"summary":"Now scored CVSS 4.3 MEDIUM."},{"kind":"new","label":"New CVE","at":"2026-09-29T10:17:13.000Z","detail":{"score":null,"severity":null,"publishedAt":"2026-09-29T10:17:12.530Z"},"summary":"New CVE, medium severity (CVSS 4.3)."}],"references":[{"url":"https://github.com/apache/airflow/pull/72166","tags":["Exploit","Patch"],"source":"security@apache.org"},{"url":"https://lists.apache.org/thread/90osv795jrqds051y7v3lcdzhsospooo","tags":["Mailing List","Vendor Advisory"],"source":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/09/29/13","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-81914","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}