---
title: "CVE-2026-90684\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2026-90684?format=md
keywords: index, follow
---

# CVE-2026-90684

Publication date 15 September 2026

Last updated 15 September 2026

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**2.8 · Low**

[Score breakdown](https://ubuntu.com/security/CVE-2026-90684?format=md#impact-score)

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## Description

A flaw has been found in GPAC up to f1219cde. Affected by this
vulnerability is the function gf\_node\_get\_field\_count of the file
scenegraph/base\_scenegraph.c of the component MP4Box. Executing a
manipulation can lead to reachable assertion. It is possible to launch the
attack on the local host. The exploit has been published and may be used.
Upgrading to version abi-16.23 addresses this issue. This patch is called
49dee5cad329cfed310c1682703df7daa47df31a. You should upgrade the affected
component.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| gpac | 26.04 LTS resolute | Not in release |
| 24.04 LTS noble | Needs evaluation |
| 22.04 LTS jammy | Needs evaluation |
| 20.04 LTS focal | Needs evaluation |
| 18.04 LTS bionic | Needs evaluation |
| 16.04 LTS xenial | Needs evaluation |
| 14.04 LTS trusty | Needs evaluation |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:

CVSS v4.0

[CVSS v4.0](https://ubuntu.com/security/CVE-2026-90684?format=md)
[CVSS v3.0](https://ubuntu.com/security/CVE-2026-90684?format=md)

**Base score**

0.9 · Low

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Local |
  | Attack complexity | Low |
  | Attack requirements | None |
  | Privileges required | Low |
  | User interaction | Passive |
  | Vulnerable system - Confidentiality impact | None |
  | Vulnerable system - Integrity impact | None |
  | Vulnerable system - Availability impact | Low |
  | Subsequent system - Confidentiality impact | None |
  | Subsequent system - Integrity impact | None |
  | Subsequent system - Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 0.9 · Low |
  | Base + Threat score | - |
  | Base + Environmental score | - |
  | Base + Threat + Environmental score | - |

**Vector:** CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-90684)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-90684)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-90684)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-90684)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-90684>
* <https://github.com/gpac/gpac/>
* <https://github.com/gpac/gpac/commit/49dee5cad329cfed310c1682703df7daa47df31a>
* <https://github.com/gpac/gpac/issues/3824>
* <https://github.com/gpac/gpac/releases/tag/abi-16.23>
* <https://github.com/r1ck9-2q/cve_summit/blob/main/Vuln%20GPAC%20MP4Box%20Assertion%20Failure%20assert(node).md>
* <https://vuldb.com/cve/CVE-2026-90684>
* <https://vuldb.com/submit/914026>
* <https://vuldb.com/vuln/403217>
* <https://vuldb.com/vuln/403217/cti>