CVE-2026-18296

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{"affected": [{"affectedData": [{"defaultStatus": "unknown", "product": "GStreamer", "vendor": "GStreamer", "versions": [{"status": "affected", "version": "13fcb641ed33d1472e4ffdec2846180b15405053"}]}], "source": "zdi-disclosures@trendmicro.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:*", "matchCriteriaId": "7226EA96-BC85-4A91-80A2-87A8C91047BA", "versionEndExcluding": "1.28.5", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "GStreamer MRF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of MRF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29608."}, {"lang": "es", "value": "Vulnerabilidad de ejecuci\u00f3n remota de c\u00f3digo por desbordamiento de b\u00fafer basado en mont\u00edculo en el an\u00e1lisis de archivos MRF de GStreamer. Esta vulnerabilidad permite a atacantes remotos ejecutar c\u00f3digo arbitrario en instalaciones afectadas de GStreamer. Se requiere interacci\u00f3n del usuario para explotar esta vulnerabilidad, ya que el objetivo debe visitar una p\u00e1gina maliciosa o abrir un archivo malicioso.\n\nLa falla espec\u00edfica existe en el an\u00e1lisis de archivos MRF. El problema se debe a la falta de validaci\u00f3n adecuada de la longitud de los datos proporcionados por el usuario antes de copiarlos a un b\u00fafer basado en mont\u00edculo. Un atacante puede aprovechar esta vulnerabilidad para ejecutar c\u00f3digo en el contexto del proceso actual. Fue ZDI-CAN-29608."}], "id": "CVE-2026-18296", "lastModified": "2026-10-26T10:10:00.140", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-18296", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-21T03:57:10.989130Z", "version": "2.0.3"}}]}, "published": "2026-08-20T17:17:26.390", "references": [{"source": "zdi-disclosures@trendmicro.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://gstreamer.freedesktop.org/security/sa-2026-0050.html"}, {"source": "zdi-disclosures@trendmicro.com", "tags": ["Third Party Advisory"], "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-464/"}], "sourceIdentifier": "zdi-disclosures@trendmicro.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}]}

{"bugzilla": {"description": "gstreamer: GStreamer: Remote Code Execution via MRF file parsing heap-based buffer overflow", "id": "2520580", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2520580"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-120", "details": ["GStreamer MRF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\nThe specific flaw exists within the parsing of MRF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29608.", "A flaw was found in GStreamer. A remote attacker could exploit a heap-based buffer overflow vulnerability when parsing specially crafted MRF (Multimedia Research Forum) files. This vulnerability arises from insufficient validation of user-supplied data length before copying it to a heap-based buffer. Successful exploitation requires user interaction, such as visiting a malicious page or opening a malicious file, and could lead to arbitrary code execution in the context of the current process."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, users should avoid opening or processing untrusted Multimedia Research Forum (MRF) files. Exercise caution when interacting with untrusted web content that may attempt to deliver malicious MRF files, as user interaction is required for exploitation."}, "name": "CVE-2026-18296", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "gstreamer1", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "gstreamer", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "gstreamer", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "gstreamer1", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "gstreamer1", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "mingw-gstreamer1", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "gstreamer1", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-20T16:22:07Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-18296\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-18296\nhttps://gstreamer.freedesktop.org/security/sa-2026-0050.html\nhttps://www.zerodayinitiative.com/advisories/ZDI-26-464/"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "13fcb641ed33d1472e4ffdec2846180b15405053"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "GStreamer", "source": "cna", "vendor": "GStreamer"}, "product": "gstreamer", "vendor": "gstreamer"}], "created": "2026-08-20T17:45:03.324598+00:00", "updated": "2026-08-22T02:30:17.183430+00:00", "vendors": ["gstreamer", "gstreamer$PRODUCT$gstreamer"]}