# CVE-2026-49088: Insertion of Sensitive Information into Log File in Kibana Leading to Information Disclosure

> Enabling optional APM instrumentation in Kibana may log sensitive request headers, exposing them to operators with log access.

- **Severity:** Medium 4.4 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 1 Jul 2026
- **Updated:** 1 Jul 2026
- **Also known as:** GHSA-r35r-rm7g-v9m8, MINI-47f8-5hgw-82m8, MINI-7pm3-6q7g-9j6v, MINI-99c6-qvm3-qwqp, MINI-vgg8-vhq3-95w2

## What is CVE-2026-49088?

CVE-2026-49088 is a medium-severity vulnerability in Elastic Kibana, published on 1 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Insertion of Sensitive Information into Log File (CWE-532) in Kibana can lead to information disclosure. When the optional application performance monitoring (APM) instrumentation is enabled, sensitive request header values could be recorded in application logs, where they may be accessible to operators with log access.

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

## Which versions are affected by CVE-2026-49088?

It affects 1 product.


Products: Elastic Kibana.

## How do I fix CVE-2026-49088?

Apply the vendor's patch.

## Is CVE-2026-49088 being exploited?

There is no known exploitation of CVE-2026-49088 in the wild and no public exploit code.

## Other vulnerabilities in Elastic Kibana

- [CVE-2019-7609](https://insights.sbomify.com/CVE-2019-7609/): Kibana Arbitrary Code Execution (critical 9.8, exploited in the wild)
- [CVE-2025-25015](https://insights.sbomify.com/CVE-2025-25015/): Kibana arbitrary code execution via prototype pollution (critical 9.9)
- [CVE-2024-37288](https://insights.sbomify.com/CVE-2024-37288/): Deserialization in Kibana (critical 9.9)
- [CVE-2023-31415](https://insights.sbomify.com/CVE-2023-31415/): Code injection in Kibana (critical 9.9)
- [CVE-2018-17245](https://insights.sbomify.com/CVE-2018-17245/): Information disclosure in Kibana (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-49088 and fix it if it is affected.

What it is: CVE-2026-49088 is a medium-severity vulnerability in Elastic Kibana, published on 1 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-49088 in the wild and no public exploit code.

Affected product: Elastic Kibana. 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-2026-49088/ (Markdown: https://insights.sbomify.com/CVE-2026-49088/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-49088
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-49088
- OSV: https://osv.dev/vulnerability/CVE-2026-49088

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-49088/
Summaries are generated and may contain mistakes; the official description above is the record.