# CVE-2026-69079: Unauthenticated Denial of Service via Unbounded Activity-Timeline Range in CTI-Transmute

> Unauthenticated attackers can cause denial of service in CTI-Transmute by submitting large values to the activity timeline endpoint, exhausting server resources.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Aug 2026
- **Updated:** 3 Aug 2026
- **Also known as:** GHSA-f6wp-5996-q84w

## What is CVE-2026-69079?

CVE-2026-69079 is a high-severity denial of service vulnerability in misp cti-transmute, published on 3 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

CTI-Transmute contains an uncontrolled resource-consumption vulnerability in the unauthenticated /activity_timeline endpoint. The endpoint accepts a user-controlled days query parameter that was not restricted to a reasonable range.

A remote, unauthenticated attacker could submit an excessively large value for this parameter, causing the application to retrieve and process activity data over an arbitrarily large period. This could consume excessive database, CPU, or memory resources, delay the processing of concurrent requests, or trigger an internal server error. Repeated requests could further degrade the availability of the CTI-Transmute website.

The vulnerability is corrected by clamping the requested timeline range to a minimum of one day and a maximum of 1,095 days.

Weakness: CWE-770 (Allocation of Resources Without Limits or Throttling)

## Which versions are affected by CVE-2026-69079?


## How do I fix CVE-2026-69079?

No fix has been published for CVE-2026-69079 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-69079 being exploited?

There is no known exploitation of CVE-2026-69079 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-69079 and fix it if it is affected.

What it is: CVE-2026-69079 is a high-severity denial of service vulnerability in misp cti-transmute, published on 3 Aug 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-2026-69079 in the wild and no public exploit code.

Affected product: misp cti-transmute. 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-2026-69079/ (Markdown: https://insights.sbomify.com/CVE-2026-69079/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-69079
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-69079
- OSV: https://osv.dev/vulnerability/CVE-2026-69079

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-69079/
Summaries are generated and may contain mistakes; the official description above is the record.