{"id":"DEBIAN-CVE-2026-126085","details":"Active Storage makes it simple to upload and reference files in cloud services and attach those files to Active Record objects. Prior to 8.1.4.1 and 8.0.5.2, ActiveStorage::Service::GCSService#url_for_direct_upload does not bind the declared content length into the signed direct-upload URL, and #headers_for_direct_upload returns no length constraint, so the URL authorizes an upload body of any size. A direct-upload client could store a file larger than the byte_size it declared, and the resulting blob keeps the declared size, possibly bypassing application file size validations and quotas. This is the weakness that CVE-2020-8162 fixed in the S3 service. Applications that store files in Google Cloud Storage and accept direct uploads are affected. This issue is fixed in versions 8.1.4.1 and 8.0.5.2.","modified":"2026-11-11T10:00:56.334899362Z","published":"2026-11-10T22:18:31.413Z","upstream":["CVE-2026-126085"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-126085"}],"affected":[{"package":{"name":"rails","ecosystem":"Debian:12","purl":"pkg:deb/debian/rails?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:6.1.7.10+dfsg-1~deb12u1","2:6.1.7.10+dfsg-1~deb12u2","2:6.1.7.10+dfsg-1~deb12u3","2:6.1.7.3+dfsg-1","2:6.1.7.3+dfsg-10","2:6.1.7.3+dfsg-11","2:6.1.7.3+dfsg-12","2:6.1.7.3+dfsg-13","2:6.1.7.3+dfsg-2","2:6.1.7.3+dfsg-2~deb12u1","2:6.1.7.3+dfsg-3","2:6.1.7.3+dfsg-4","2:6.1.7.3+dfsg-5","2:6.1.7.3+dfsg-6","2:6.1.7.3+dfsg-7","2:6.1.7.3+dfsg-7~exp1","2:6.1.7.3+dfsg-8","2:6.1.7.3+dfsg-9","2:7.2.2.1+dfsg-1","2:7.2.2.1+dfsg-1~exp1","2:7.2.2.1+dfsg-1~exp2","2:7.2.2.1+dfsg-1~exp3","2:7.2.2.1+dfsg-1~exp4","2:7.2.2.1+dfsg-1~exp6","2:7.2.2.1+dfsg-2","2:7.2.2.1+dfsg-3","2:7.2.2.1+dfsg-4","2:7.2.2.1+dfsg-5","2:7.2.2.1+dfsg-6","2:7.2.2.1+dfsg-7","2:7.2.2.2+dfsg-1","2:7.2.2.2+dfsg-2","2:7.2.2.2+dfsg-2~deb13u1","2:7.2.2.2+dfsg-2~deb13u2","2:7.2.3+dfsg-1","2:7.2.3+dfsg-2","2:7.2.3+dfsg-3","2:7.2.3.1+dfsg-1","2:7.2.3.2+dfsg-1","2:7.2.3.2+dfsg-2","2:7.2.3.2+dfsg-3","2:7.2.4+dfsg-1","2:7.2.4+dfsg-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-126085.json"}},{"package":{"name":"rails","ecosystem":"Debian:13","purl":"pkg:deb/debian/rails?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:7.2.2.1+dfsg-7","2:7.2.2.2+dfsg-1","2:7.2.2.2+dfsg-2","2:7.2.2.2+dfsg-2~deb13u1","2:7.2.2.2+dfsg-2~deb13u2","2:7.2.3+dfsg-1","2:7.2.3+dfsg-2","2:7.2.3+dfsg-3","2:7.2.3.1+dfsg-1","2:7.2.3.2+dfsg-1","2:7.2.3.2+dfsg-2","2:7.2.3.2+dfsg-3","2:7.2.4+dfsg-1","2:7.2.4+dfsg-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-126085.json"}},{"package":{"name":"rails","ecosystem":"Debian:14","purl":"pkg:deb/debian/rails?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:7.2.2.1+dfsg-7","2:7.2.2.2+dfsg-1","2:7.2.2.2+dfsg-2","2:7.2.2.2+dfsg-2~deb13u1","2:7.2.2.2+dfsg-2~deb13u2","2:7.2.3+dfsg-1","2:7.2.3+dfsg-2","2:7.2.3+dfsg-3","2:7.2.3.1+dfsg-1","2:7.2.3.2+dfsg-1","2:7.2.3.2+dfsg-2","2:7.2.3.2+dfsg-3","2:7.2.4+dfsg-1","2:7.2.4+dfsg-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-126085.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"}]}