What is CVE-2022-31118?

CVE-2022-31118 is a medium-severity vulnerability in Nextcloud Server, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2022-08-04.

How severe is CVE-2022-31118?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Nextcloud Server

CVE-2022-31118

Nextcloud server is an open source personal cloud solution. In affected versions an attacker could brute force to find if federated sharing is being used and potentially try to brute force access tokens for federated shares (`a-zA-Z0-9` ^ 15). It is recommended that the Nextcloud Server is upgraded to 22.2.9, 23.0.6 or 24.0.2. Users unable to upgrade may disable federated sharing via the Admin Sharing settings in `index.php/settings/admin/sharing`.

EPSS: 0.006 (46.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.

Affected products

Nextcloud Nextcloud_server
Nextcloud Security-advisories — versions < 22.2.9, >= 23.0.0, < 23.0.6, >= 24.0.0, < 24.0.2

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2022-31118?: CVE-2022-31118 is a medium-severity vulnerability in Nextcloud Server, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2022-08-04.
How severe is CVE-2022-31118?: Medium severity. CVSS v3 base score is 6.5 out of 10.