CVE-2026-18649
HighCVSS 7.5Exploitation Probability (EPSS)
Elevated risk60th percentile - higher than 60% of all known CVEs
Summary
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 during fragmented RTP packet processing. A remote attacker can send a continuous stream of RTP fragments without end-of-fragment markers, causing the buffer to grow unbounded until memory exhaustion.
Risk Assessment
The attack can lead to denial of service through process termination, potentially affecting availability of applications using GStreamer.
Recommendation
Update gst-plugins-good to a patched version. If not possible, restrict access to RTP processing services or apply memory limits.
Other vulnerabilities in GStreamer gst-plugins-good
See all- CVE-2026-46472High
An issue was discovered in GStreamer gst-plugins-good before 1.28.2. While parsing an MP4 file, the isomp4 plugin's qtdemux_parse_chnl function may read past the end of a global array, potentially leading to information disclosure.
- CVE-2017-5845High
The gst_avi_demux_parse_ncdt function in gst-plugins-good in GStreamer before version 1.10.3 allows remote attackers to cause a denial of service via invalid memory reads, leading to crashes.
- CVE-2017-5841High
The gst_avi_demux_parse_ncdt function in gst-plugins-good in GStreamer before version 1.10.3 allows remote attackers to cause a denial of service (out-of-bounds heap read) via vectors involving ncdt tags.
- CVE-2016-10199High
The qtdemux_tag_add_str_full function in gst/isomp4/qtdemux.c in GStreamer before version 1.10.3 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a crafted tag value.
- CVE-2026-119843Medium
A flaw was found in GStreamer's gst-plugins-good package. The FLV media demuxer does not properly validate buffer sizes and data availability when processing enhanced audio and video tags in malformed or truncated FLV streams. A remote attacker could exploit this vulnerability by providing a specially crafted FLV media file that, when opened or streamed by a GStreamer-based application, triggers an assertion failure or a process crash, leading to denial of service.
- CVE-2026-46471Medium
An issue was discovered in GStreamer gst-plugins-good before 1.28.2. While parsing an MP4 file, the isomp4 plugin's qtdemux_parse_uuid function may read past the end of a heap-allocated buffer, allowing an attacker to disclose heap memory contents.
- CVE-2026-46470Medium
Vulnerability in GStreamer gst-plugins-good before 1.28.2. When parsing MP4 audio tracks, the isomp4 plugin's qtdemux_audio_caps function does not sufficiently validate atom data before performing division operations, leading to denial of service due to integer division by zero.
- CVE-2026-46469Medium
An issue was discovered in GStreamer gst-plugins-good before 1.28.2. When parsing MP4 audio tracks, the isomp4 plugin's qtdemux_parse_trak function does not sufficiently validate atom data before performing division operations, leading to denial of service due to integer division by zero.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS