What is CVE-2024-37882?

CVE-2024-37882 is a high-severity vulnerability in Nextcloud Server, classified under Improper Access Control. CVSS score: 8.1/10. Published 2024-06-14.

How severe is CVE-2024-37882?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Nextcloud Server

CVE-2024-37882

Nextcloud Server is a self hosted personal cloud system. A recipient of a share with read&share permissions could reshare the item with more permissions. It is recommended that the Nextcloud Server is upgraded to 26.0.13 or 27.1.8 or 28.0.4 and that the Nextcloud Enterprise Server is upgraded to 26.0.13 or 27.1.8 or 28.0.4.

Published 2024-06-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (44.1th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Nextcloud Server
Nextcloud Security-Advisories — versions >= 26.0.0, < 26.0.13, >= 27.0.0, < 27.1.8, >= 28.0.0, < 28.0.4

Weakness classification (CWE)

References

github.com/nextcloud/security-advisories/security/advisories/GHSA-jjm3-j9xh-5xmq (Vendor Advisory)
github.com/nextcloud/server/pull/44339 (Patch)
hackerone.com/reports/2289425 (Issue Tracking)

Frequently asked questions

What is CVE-2024-37882?: CVE-2024-37882 is a high-severity vulnerability in Nextcloud Server, classified under Improper Access Control. CVSS score: 8.1/10. Published 2024-06-14.
How severe is CVE-2024-37882?: High severity. CVSS v3 base score is 8.1 out of 10.