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GPAC MP4Box CVE-2026-90613

| EUVDEUVD-2026-77168 LOW
Reachable Assertion (CWE-617)
2026-09-14 VulDB GHSA-69g9-hrxq-rv88
Denial Of Service Gpac N A
1.9
CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY
1.9 MEDIUM
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/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
3.3 LOW

Attacker crafts a file (PR:N) that a local user must process (UI:R, AV:L); only application crash results, no C or I impact.

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

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

5
Severity Changed
Sep 14, 2026 - 02:22 NVD
MEDIUM LOW
CVSS changed
Sep 14, 2026 - 02:22 NVD
4.8 (MEDIUM) 1.9 (LOW)
Source Code Evidence Fetched
Sep 14, 2026 - 02:17 vuln.today
Analysis Generated
Sep 14, 2026 - 02:17 vuln.today
CVE Published
Sep 14, 2026 - 01:30 cve.org
MEDIUM 4.8

DescriptionCVE.org

A security flaw has been discovered in GPAC up to f1219cde. Affected by this vulnerability is the function stbl_GetSampleInfos of the file isomedia/stbl_read.c of the component MP4Box. The manipulation results in reachable assertion. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. Upgrading to version abi-16.23 addresses this issue. The patch is identified as 49dee5cad329cfed310c1682703df7daa47df31a. It is advisable to upgrade the affected component.

AnalysisAI

GPAC's MP4Box media packager crashes on a crafted MP4 file due to a reachable assertion in stbl_GetSampleInfos() (src/isomedia/stbl_read.c), which fires when a malformed sample-to-chunk table causes firstSampleInCurrentChunk to exceed the current sampleNumber. All GPAC releases up to commit f1219cde are affected. …

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Attack ChainAIDerived

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Vulnerability AssessmentAI

Exploitation The vulnerability requires a local attacker to supply a crafted MP4 file to a system or user that processes it with the GPAC MP4Box binary (or any application linking libgpac's ISOBMFF reader). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:L/AC:L/AT:N/PR:L/UI:N/VA:L) accurately captures this as a low-severity local DoS. … 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 release abi-16.23 or any commit after 49dee5cad329cfed310c1682703df7daa47df31a, 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-2026-90613 vulnerability details – vuln.today
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