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CVE-2026-90611

GPAC MP4Box loader_xmt.c xmt_parse_element assertion

LOW
3.3
CVSS Score
Published: September 14, 2026 at 01:00 AM UTC
Updated: September 15, 2026 at 07:17 PM UTC
1 product affected across 1 vendorGpac

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Severity
LOW3.3
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

A vulnerability was determined in GPAC up to f1219cde. This impacts the function xmt_parse_element of the file scene_manager/loader_xmt.c of the component MP4Box. Executing a manipulation can lead to reachable assertion. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. Upgrading to version abi-16.23 will fix this issue. This patch is called afca1f1181668d85941d51ed1adf647807d5d975. It is recommended to upgrade the affected component.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Gpac· Gpac
95%
All versionsf1219cde
Vendor states this is fixed in abi-16.23 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (9)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/403193
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/403193/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-90611
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/913517
Issue Tracking
Source: cverecord
https://github.com/gpac/gpac/issues/3820
Exploit
Source: cverecord
https://github.com/r1ck9-2q/cve_summit/blob/main/Vuln-GPAC-MP4Box-Assertion-Failure-in-xmt_parse_element.md
Patch
Source: cverecord
https://github.com/gpac/gpac/commit/afca1f1181668d85941d51ed1adf647807d5d975
Patch
Source: cverecord
https://github.com/gpac/gpac/releases/tag/abi-16.23

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.3LOWVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-617

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