{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-128240", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-12T23:11:45.421Z", "datePublished": "2026-11-13T09:33:46.903Z", "dateUpdated": "2026-11-13T09:33:46.903Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-13T09:33:46.903Z"}, "datePublic": "2026-10-29T21:52:49.000Z", "title": "GPAC through 26.07.0 Use-After-Free in gf_sg_proto_del During Scene Teardown", "descriptions": [{"lang": "en", "value": "GPAC through 26.07.0 contains a use-after-free vulnerability in gf_sg_proto_del() in src/scenegraph/vrml_proto.c because gf_sg_reset() frees unregistered prototypes still referenced by scene commands. Attackers can supply a crafted XMT/BT scene declaring prototypes via commands, processed by MP4Box -chap, to trigger freed memory access and crash the process."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Use After Free", "cweId": "CWE-416", "type": "CWE"}]}], "affected": [{"vendor": "gpac", "product": "gpac", "defaultStatus": "unaffected", "versions": [{"version": "0", "status": "affected", "versionType": "custom", "lessThanOrEqual": "26.07.0"}], "packageURL": "pkg:github/gpac/gpac"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*", "versionEndIncluding": "26.07.0"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/gpac/gpac/issues/4031", "tags": ["issue-tracking"]}, {"url": "https://github.com/gpac/gpac/commit/a2e5c62c213b5329a4572fe8e7c333e1ca26d028", "tags": ["patch"]}, {"url": "https://github.com/gpac/gpac/blob/v26.07.0/src/scenegraph/vrml_proto.c#L103-L111", "tags": ["technical-description"]}, {"url": "https://github.com/gpac/gpac/blob/v26.07.0/src/scenegraph/base_scenegraph.c#L537-L542", "tags": ["technical-description"]}, {"url": "https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/223/223_gf_sg_proto_del_scenegraph_vrml_proto_c.xmt", "tags": ["exploit"]}, {"url": "https://github.com/gpac/gpac", "tags": ["product"]}, {"name": "VulnCheck Advisory: GPAC through 26.07.0 Use-After-Free in gf_sg_proto_del During Scene Teardown", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/gpac-through-26.07.0-use-after-free-in-gf-sg-proto-del-during-scene-teardown"}], "credits": [{"lang": "en", "value": "Alexander A. Shvedov (sigdevel)", "type": "finder"}, {"lang": "en", "value": "Jean Le Feuvre", "type": "remediation developer"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

{}

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{}