๐Ÿ” CVE Alert

CVE-2026-82982

MEDIUM 4.3
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 โ‰ค 3.0.0

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
hackerone.com: https://hackerone.com/reports/3610332

Credits

Dang Hung Vi (vidang04)