# CVE-2025-62877: Harvest may expose OS default ssh login password via SUSE Virtualization Interactive Installer

> Attackers can access SSH using default credentials if the interactive installer is used instead of PXE boot, compromising cluster hosts.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 8 Jan 2026
- **Updated:** 8 Jan 2026
- **Also known as:** GHSA-6g8q-hp2j-gvwv, GO-2026-4281

## What is CVE-2025-62877?

CVE-2025-62877 is a critical vulnerability in SUSE harvester, published on 8 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Projects using the SUSE Virtualization (Harvester) environment may expose the OS default ssh login password  if they are using the 1.5.x or 1.6.x interactive installer to either create a new cluster or add new hosts to an existing cluster.  The environment is not affected if the PXE boot mechanism is utilized along with the Harvester configuration setup.

Weakness: CWE-1188 (Initialization of a Resource with an Insecure Default)

## Which versions are affected by CVE-2025-62877?

6 open source packages ship an affected version, including github.com/harvester/harvester-installer.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/harvester/harvester-installer` | Go | From 1.5.0 | None |
| `github.com/harvester/harvester-installer` | Go | From 1.5.0 to 1.5.2 | None |
| `github.com/harvester/harvester-installer` | Go | From 1.5.0 to 1.5.2 | None |
| `github.com/harvester/harvester-installer` | Go | From 1.6.0 | None |
| `github.com/harvester/harvester-installer` | Go | From 1.6.0 to 1.6.1 | None |
| `github.com/harvester/harvester-installer` | Go | From 1.6.0 to 1.6.1 | None |

## How do I fix CVE-2025-62877?

Change a configuration setting.

## Is CVE-2025-62877 being exploited?

There is no known exploitation of CVE-2025-62877 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-62877 and fix it if it is affected.

What it is: CVE-2025-62877 is a critical vulnerability in SUSE harvester, published on 8 Jan 2026. 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-2025-62877 in the wild and no public exploit code.

Affected packages and fixed versions:
- github.com/harvester/harvester-installer (Go): affected from 1.5.0; no fix listed
- github.com/harvester/harvester-installer (Go): affected from 1.5.0 up to 1.5.2; no fix listed
- github.com/harvester/harvester-installer (Go): affected from 1.5.0 up to 1.5.2; no fix listed
- github.com/harvester/harvester-installer (Go): affected from 1.6.0; no fix listed
- github.com/harvester/harvester-installer (Go): affected from 1.6.0 up to 1.6.1; no fix listed
- github.com/harvester/harvester-installer (Go): affected from 1.6.0 up to 1.6.1; no fix listed

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-2025-62877/ (Markdown: https://insights.sbomify.com/CVE-2025-62877/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-62877
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-62877
- OSV: https://osv.dev/vulnerability/CVE-2025-62877

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-62877/
Summaries are generated and may contain mistakes; the official description above is the record.