# CVE-2025-52490: Couchbase Sync Gateway shows cleartext passwords in redacted and unredacted output

> Cleartext passwords are exposed in log files, allowing attackers with log access to steal credentials.

- **Severity:** High 7.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 29 Jul 2025
- **Updated:** 29 Jul 2025
- **Also known as:** GHSA-pqhp-4xfc-hjgq, GO-2026-5550, PYSEC-2025-101

## What is CVE-2025-52490?

CVE-2025-52490 is a high-severity vulnerability in n/a, published on 29 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-319 (Cleartext Transmission of Sensitive Information)

## Which versions are affected by CVE-2025-52490?

4 open source packages ship an affected version, including github.com/couchbase/sync_gateway and couchbase. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/couchbase/sync_gateway` | Go | All versions | None |
| `github.com/couchbase/sync_gateway` | Go | All versions | 3.2.6 |
| `github.com/couchbase/sync_gateway` | Go | All versions | 3.2.6 |
| `couchbase` | PyPI | All versions | 3.2.6 |

Products: Couchbase Sync Gateway.

## How do I fix CVE-2025-52490?

Upgrade github.com/couchbase/sync_gateway to 3.2.6 or later.

## Is CVE-2025-52490 being exploited?

There is no known exploitation of CVE-2025-52490 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2022-32563](https://insights.sbomify.com/CVE-2022-32563/): Couchbase Sync Gateway admin credentials not verified when using X.509 client cert authentication (critical 9.8)
- [CVE-2019-9039](https://insights.sbomify.com/CVE-2019-9039/): SQL Injection in Couchbase Sync Gateway (critical 9.8)
- [CVE-2021-43963](https://insights.sbomify.com/CVE-2021-43963/): Information disclosure in n/a (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-52490 and fix it if it is affected.

What it is: CVE-2025-52490 is a high-severity vulnerability in n/a, published on 29 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-52490 in the wild and no public exploit code.

Affected packages and fixed versions:
- github.com/couchbase/sync_gateway (Go): affected all versions; no fix listed
- github.com/couchbase/sync_gateway (Go): affected all versions; fixed in 3.2.6
- github.com/couchbase/sync_gateway (Go): affected all versions; fixed in 3.2.6
- couchbase (PyPI): affected all versions; fixed in 3.2.6

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-52490/ (Markdown: https://insights.sbomify.com/CVE-2025-52490/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-52490
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-52490
- OSV: https://osv.dev/vulnerability/CVE-2025-52490

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-52490/
Summaries are generated and may contain mistakes; the official description above is the record.