# CVE-2026-8671: Log Files contain encrypted secrets

> Attackers can read encrypted secrets from log files in Avantra, potentially exposing sensitive data.

- **Severity:** High 7.5 (`CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 May 2026
- **Updated:** 22 May 2026
- **Also known as:** GHSA-5qp4-pv6p-8gcx

## What is CVE-2026-8671?

CVE-2026-8671 is a high-severity vulnerability in syslink software AG Avantra, published on 22 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Insertion of sensitive information into log file vulnerability in syslink software AG Avantra on Linux, Windows allows Resource Leak Exposure.

This issue affects Avantra: before 25.3.0.

Weakness: CWE-532 (Insertion of Sensitive Information into Log File)

## Which versions are affected by CVE-2026-8671?

It affects 1 product.


Products: Avantra Avantra.

## How do I fix CVE-2026-8671?

No fix has been published for CVE-2026-8671 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-8671 being exploited?

There is no known exploitation of CVE-2026-8671 in the wild and no public exploit code.

## Other vulnerabilities in syslink software AG Avantra

- [CVE-2026-8670](https://insights.sbomify.com/CVE-2026-8670/): Insecure session handling on metrics web server (critical 9.6)
- [CVE-2026-8673](https://insights.sbomify.com/CVE-2026-8673/): Password re-initialization mechanism sends passwords in plain text (medium 5.9)
- [CVE-2026-8672](https://insights.sbomify.com/CVE-2026-8672/): Default credentials for internal DB (medium 5.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-8671 and fix it if it is affected.

What it is: CVE-2026-8671 is a high-severity vulnerability in syslink software AG Avantra, published on 22 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-8671 in the wild and no public exploit code.

Affected product: syslink software AG Avantra. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2026-8671/ (Markdown: https://insights.sbomify.com/CVE-2026-8671/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-8671
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-8671
- OSV: https://osv.dev/vulnerability/CVE-2026-8671

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-8671/
Summaries are generated and may contain mistakes; the official description above is the record.