CVE-2026-82982
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
The Approval app's approve/reject endpoint is meant to require the file's current etag as a freshness check, preventing an approver from approving or rejecting a file whose contents changed after they reviewed it. The backend only enforced this check when the etag parameter was present and non-empty in the request. An attacker able to intercept and modify the approval request could omit the etag field entirely, bypassing the freshness check and approving or rejecting a file version they never reviewed.
| CWE | CWE-840 |
| Vendor | nextcloud |
| Product | approval |
| Published | Sep 18, 2026 |
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CVSS v3 Breakdown
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Affected Versions
Nextcloud / Approval
1.0.0 โค 3.0.0
Credits
Dang Hung Vi (vidang04)