Vulnerability in Couchbase Sync Gateway
CVE-2025-52490
An issue was discovered in Couchbase Sync Gateway before 3.2.6. In sgcollect_info_options.log and sync_gateway.log, there are cleartext passwords in redacted and unredacted output.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (7.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 7.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- forums.couchbase.com/tags/security (Vendor Advisory)
- docs.couchbase.com/server/current/release-notes/relnotes.html (Release Notes)
- www.couchbase.com/alerts/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-52490?
- CVE-2025-52490 is a high-severity vulnerability in Couchbase Sync Gateway, classified under Cleartext Transmission of Sensitive Information. CVSS score: 7.3/10. Published 2025-07-29.
- How severe is CVE-2025-52490?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2025-52490 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.