{"id":"CLEANSTART-2026-NQ21805","summary":"Missing cryptographic key commitment in the AWS SDK for PHP may allow a user with write access to the S3 bucket to introduce a new EDK that decrypts to different plaintext when the encrypted data k...","details":"Security vulnerability affects the nextcloud package. Missing cryptographic key commitment in the AWS SDK for PHP may allow a user with write access to the S3 bucket to introduce a new EDK that decrypts to different plaintext when the encrypted data key is stored in an \"instruction file\" instead of S3's metadata record.","modified":"2026-10-31T16:04:20.965608439Z","published":"2026-10-31T11:58:05.555771Z","upstream":["CVE-2025-14761"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-NQ21805.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2025-14761"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-14761"}],"affected":[{"package":{"name":"nextcloud","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/nextcloud?arch=noarch"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32.0.3-r0"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-NQ21805.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}