Couchbase Sync Gateway shows cleartext passwords in redacted and unredacted output

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

7.3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS

• CVE-2025-52490: 0.22% estimated exploitation activity in the next 30 days; percentile 12.07 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

An issue was discovered in Couchbase Sync Gateway before 3.2.6. In sgcollectinfooptions.log and syncgateway.log, there are cleartext passwords in redacted and unredacted output.

Published by the source

29 Jul 2025, 20:15 UTC

Last modified by the source

25 Jun 2026, 23:11 UTC

Source last checked

26 Oct 2026, 15:23 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-pqhp-4xfc-hjgq

2. Revision 1 · created · 24 Oct 2026

   Published from osv record PYSEC-2025-101

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# Patch Next advisory brief: CVE-2025-52490

Advisory: Couchbase Sync Gateway shows cleartext passwords in redacted and unredacted output
IDs: CVE-2025-52490, GHSA-pqhp-4xfc-hjgq
Record: https://patchnext.com/advisories/cve-2025-52490 (revision 2, source checked 26 Oct 2026, 15:23 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: couchbase 3.2.6; github.com/couchbase/sync_gateway 3.2.6. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI couchbase: affected < 3.2.6; fixed in 3.2.6
- Go github.com/couchbase/sync_gateway: affected < 3.2.6; fixed in 3.2.6

## Suggested inspection (read-only)
- `python -m pip show couchbase`: prints the installed version. Run with the environment that serves production active.
- Go github.com/couchbase/sync_gateway: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on couchbase, github.com/couchbase/sync_gateway.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/PYSEC-2025-101 (OSV record PYSEC-2025-101 lists affected ranges: PyPI couchbase >=0 <3.2.6 (fixed))
- Verified: https://github.com/advisories/GHSA-pqhp-4xfc-hjgq (GitHub-reviewed advisory GHSA-pqhp-4xfc-hjgq lists affected ranges: Go github.com/couchbase/sync_gateway >=0 <3.2.6)

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