Vulnerability in Nextcloud Server
CVE-2024-52521
Nextcloud Server is a self hosted personal cloud system. MD5 hashes were used to check background jobs for their uniqueness. This increased the chances of a background job with arguments falsely being identified as already existing and not be queued for execution. By changing the Hash to SHA256 the probability was heavily decreased. It is recommended that the Nextcloud Server is upgraded to 28.0.10, 29.0.7 or 30.0.0.
EPSS: 0.004 (31.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.6 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N.
Affected products
- Nextcloud Nextcloud_server
- Nextcloud Security-advisories — versions >= 28.0.0, < 28.0.10, >= 29.0.0, < 29.0.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2024-52521?
- CVE-2024-52521 is a low-severity vulnerability in Nextcloud Server, classified under Use of Weak Hash. CVSS score: 2.6/10. Published 2024-11-15.
- How severe is CVE-2024-52521?
- Low severity. CVSS v3 base score is 2.6 out of 10.
- Is CVE-2024-52521 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.