CVE-2026-18649

{"id": "CVE-2026-18649", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-18649", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-06T13:42:01.159055Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "secalert@redhat.com", "affectedData": [{"cpes": ["cpe:/o:redhat:enterprise_linux:10.2"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "versions": [{"status": "unaffected", "version": "0:1.26.7-2.el10_2.3", "lessThan": "*", "versionType": "rpm"}], "packageName": "gstreamer1-plugins-good", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux_eus:10.0"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10.0 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:1.24.11-1.el10_0.4", "lessThan": "*", "versionType": "rpm"}], "packageName": "gstreamer1-plugins-good", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "versions": [{"status": "unaffected", "version": "0:1.16.1-7.el8_10.3", "lessThan": "*", "versionType": "rpm"}], "packageName": "gstreamer1-plugins-good", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:1.22.12-7.el9_8.2", "lessThan": "*", "versionType": "rpm"}], "packageName": "gstreamer1-plugins-good", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.2::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:1.18.4-8.el9_2.2", "lessThan": "*", "versionType": "rpm"}], "packageName": "gstreamer1-plugins-good", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.4::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:1.22.1-4.el9_4.2", "lessThan": "*", "versionType": "rpm"}], "packageName": "gstreamer1-plugins-good", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_eus:9.6::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:1.22.12-5.el9_6.2", "lessThan": "*", "versionType": "rpm"}], "packageName": "gstreamer1-plugins-good", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:7"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "packageName": "gstreamer1-plugins-good", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}]}], "published": "2026-08-06T08:16:29.780", "references": [{"url": "https://0xsemizzz.vercel.app/blog/cve-2026-18649-gstreamer-rtp-dos/", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:53451", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:53452", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:56966", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:61588", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:61943", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:65959", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:65999", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-18649", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2510614", "source": "secalert@redhat.com"}, {"url": "https://gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/113", "source": "secalert@redhat.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in the GStreamer gst-plugins-good package. The rtph264depay and rtph265depay RTP depayloader elements do not enforce a maximum size limit on the reassembly buffer used during fragmented RTP packet processing. A remote, unauthenticated attacker can send a continuous stream of RTP fragments without ever transmitting an end-of-fragment marker, causing the reassembly buffer to grow without bound until process memory is exhausted. This results in a denial of service through process termination."}], "lastModified": "2026-09-09T17:17:17.447", "sourceIdentifier": "secalert@redhat.com"}