# CVE-2026-87021: Tanium addressed an unauthorized code execution vulnerability in Comply.

> Attackers can execute unauthorized code in Tanium Comply, requiring immediate patching to prevent system compromise.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Sep 2026
- **Updated:** 9 Sep 2026
- **Also known as:** GHSA-37q3-xf78-2773

## What is CVE-2026-87021?

CVE-2026-87021 is a high-severity code injection vulnerability in Tanium Comply, published on 9 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Tanium addressed an unauthorized code execution vulnerability in Comply.

Weakness: CWE-1336 (Improper Neutralization of Special Elements Used in a Template Engine)

## Which versions are affected by CVE-2026-87021?

It affects 1 product.


Products: Tanium Comply.

## How do I fix CVE-2026-87021?

No fix has been published for CVE-2026-87021 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-87021 being exploited?

There is no known exploitation of CVE-2026-87021 in the wild and no public exploit code.

## Other vulnerabilities in Tanium Comply

- [CVE-2026-87023](https://insights.sbomify.com/CVE-2026-87023/): Tanium addressed a path traversal vulnerability in Comply. (high 8.5)
- [CVE-2026-87030](https://insights.sbomify.com/CVE-2026-87030/): Tanium addressed a path traversal vulnerability in Comply. (high 8.5)
- [CVE-2026-87034](https://insights.sbomify.com/CVE-2026-87034/): Tanium addressed a SQL injection vulnerability in Comply. (high 8.3)
- [CVE-2026-87036](https://insights.sbomify.com/CVE-2026-87036/): Tanium addressed an improper access controls vulnerability in Comply. (high 8.1)
- [CVE-2026-87075](https://insights.sbomify.com/CVE-2026-87075/): Tanium addressed an improper access controls vulnerability in Comply. (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-87021 and fix it if it is affected.

What it is: CVE-2026-87021 is a high-severity code injection vulnerability in Tanium Comply, published on 9 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-87021 in the wild and no public exploit code.

Affected product: Tanium Comply. 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-2026-87021/ (Markdown: https://insights.sbomify.com/CVE-2026-87021/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-87021
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-87021
- OSV: https://osv.dev/vulnerability/CVE-2026-87021

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-87021/
Summaries are generated and may contain mistakes; the official description above is the record.