CVE-2026-90794 - Vulnerability Details

- GPAC MP4Box vrml_tools.c gf_sg_script_load use after free

Description

A vulnerability was found in GPAC up to f1219cde. The affected element is the function gf_sg_script_load of the file scenegraph/vrml_tools.c of the component MP4Box. Performing a manipulation results in use after free. It is possible to initiate the attack remotely. The exploit has been made public and could be used. Upgrading to version abi-16.23 is sufficient to fix this issue. The patch is named 9eb40df4448b88d6a6ce3454657c06f47eff0b24. It is advisable to upgrade the affected component.

Published: 2026-09-14

Score: 5.3 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Impact

The flaw is a use‑after‑free bug in the gf_sg_script_load function located in scenegraph/vrml_tools.c of GPAC’s MP4Box component. After a script is loaded and the memory that holds it is freed, the function can still reference that memory, allowing an attacker to execute arbitrary code or crash the application. The weakness is a typical buffer overflow and memory corruption scenario (CWE‑119 and CWE‑416). The vulnerability is remotely exploitable, and a public exploit is available.

Affected Systems

GPAC, the open‑source multimedia framework that includes the MP4Box command‑line tool. Versions up to the Git commit f1219cde are vulnerable. The advised fix is to upgrade to version abi‑16.23 or later, which incorporates the patch from commit 9eb40df4448b88d6a6ce3454657c06f47eff0b24.

Risk and Exploitability

The CVSS score of 5.3 indicates a medium severity risk. No EPSS score is published, and the flaw is not listed in the CISA KEV catalog. Because the attack requires only a remotely triggered manipulation of a script, the practical exploitation is realistic, especially since a proof‑of‑concept and public exploit code have already been released.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

GPAC

affected

Version	Status	Constraints
`f1219cde`	affected	—
`abi-16.23`	unaffected	—

No data.

Vendor Product Confidence Versions

Gpac

95%

Version	Status	Scheme	Platform
`f1219cde`	affected	code_commit	—
`abi-16.23`	unaffected	generic	—

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Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Upgrade GPAC to version abi‑16.23 or later to apply the official patch that fixes the use‑after‑free in gf_sg_script_load.
If an immediate upgrade is not possible, restrict MP4Box’s exposure to untrusted input by disabling remote script loading or isolating the component to a locked environment.
Continuously monitor logs and crash reports for forced memory accesses or abnormal terminations that could indicate exploitation attempts, and defer the upgrade until it can be applied.

Generated by OpenCVE AI on September 15, 2026 at 13:22 UTC.

Tracking

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Advisories

No advisories yet.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00511.

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/Ech06/CVE_submit/blob/main/gpac_3799.md
https://github.com/gpac/gpac/
https://github.com/gpac/gpac/commit/9eb40df4448b88d6a6ce3454657c06f47eff0b24
https://github.com/gpac/gpac/issues/3799
https://github.com/gpac/gpac/releases/tag/abi-16.23
https://vuldb.com/cve/CVE-2026-90794
https://vuldb.com/submit/914127
https://vuldb.com/vuln/403300
https://vuldb.com/vuln/403300/cti

History

Mon, 14 Sep 2026 21:00:00 +0000

Type	Values Removed	Values Added
Description		A vulnerability was found in GPAC up to f1219cde. The affected element is the function gf_sg_script_load of the file scenegraph/vrml_tools.c of the component MP4Box. Performing a manipulation results in use after free. It is possible to initiate the attack remotely. The exploit has been made public and could be used. Upgrading to version abi-16.23 is sufficient to fix this issue. The patch is named 9eb40df4448b88d6a6ce3454657c06f47eff0b24. It is advisable to upgrade the affected component.
Title		GPAC MP4Box vrml_tools.c gf_sg_script_load use after free
First Time appeared		Gpac Gpac gpac
Weaknesses		CWE-119 CWE-416
CPEs		cpe:2.3:a:gpac:gpac::::::::
Vendors & Products		Gpac Gpac gpac
References		https://github.com/Ech06/CVE_submit/blob/main/gpac_3799.md https://github.com/gpac/gpac/ https://github.com/gpac/gpac/commit/9eb40df4448b88d6a6ce3454657c06f47eff0b24 https://github.com/gpac/gpac/issues/3799 https://github.com/gpac/gpac/releases/tag/abi-16.23 https://vuldb.com/cve/CVE-2026-90794 https://vuldb.com/submit/914127 https://vuldb.com/vuln/403300 https://vuldb.com/vuln/403300/cti
Metrics		cvssV2_0 `{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C'}` cvssV3_0 `{'score': 6.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C'}` cvssV3_1 `{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C'}` cvssV4_0 `{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Gpac Gpac

MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-09-14T15:30:12.808Z

Updated: 2026-09-14T16:28:49.594Z

Reserved: 2026-09-13T13:37:11.145Z

Link: CVE-2026-90794

Vulnrichment

Updated: 2026-09-14T16:28:45.983Z

NVD

Status : Deferred

Published: 2026-09-14T16:17:41.290

Modified: 2026-09-14T20:56:48.220

Link: CVE-2026-90794

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-09-15T13:30:13Z

Weaknesses

CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-416
Use After Free

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

Exploitation poc

Automatable no

Technical Impact partial

Subscriptions

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