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GPAC CVE-2026-91089

| EUVDEUVD-2026-78315 LOW
Use After Free (CWE-416)
2026-09-15 VulDB GHSA-62rw-w2vq-4j55
Denial Of Service Use After Free Memory Corruption Gpac N A
2.1
CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY
2.1 MEDIUM
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
6.3 MEDIUM

Network-delivered file triggers UAF with user interaction required; limited C/I/A impact consistent with heap corruption in client media tool.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
P
Scope
X

Lifecycle Timeline

5
Severity Changed
Sep 15, 2026 - 08:22 NVD
MEDIUM LOW
CVSS changed
Sep 15, 2026 - 08:22 NVD
5.3 (MEDIUM) 2.1 (LOW)
Source Code Evidence Fetched
Sep 15, 2026 - 07:59 vuln.today
Analysis Generated
Sep 15, 2026 - 07:59 vuln.today
CVE Published
Sep 15, 2026 - 07:15 cve.org
MEDIUM 5.3

DescriptionCVE.org

A vulnerability was found in GPAC up to f1219cde. Impacted is the function gf_node_get_name_and_id of the file scenegraph/base_scenegraph.c. The manipulation results in use after free. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version abi-16.23 is recommended to address this issue. The patch is identified as 49dee5cad329cfed310c1682703df7daa47df31a. You should upgrade the affected component.

AnalysisAI

Use-after-free in GPAC's scenegraph node handling allows a remote attacker to trigger memory corruption by delivering a crafted media file that is processed by the affected application. The vulnerability exists in gf_node_get_name_and_id() in scenegraph/base_scenegraph.c, where a node pointer could be dereferenced after being freed due to missing null/reference-count guards in the BIFS decoder's command assignment path. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires that a victim user open or process a crafted media file (MP4/BT scene) using a GPAC-based application - user interaction is mandatory (UI:P in the CVSS 4.0 vector). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:P) yields a 5.3 Medium score, reflecting that exploitation requires user interaction (UI:P) - typically convincing a user to open a crafted media file. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade GPAC to the patched release abi-16.23, available at https://github.com/gpac/gpac/releases/tag/abi-16.23. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-91089 vulnerability details – vuln.today
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