CVE Vulnerabilities

CVE-2026-18299

Use After Free

Published: Aug 20, 2026 | Modified: Sep 02, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
8.8 IMPORTANT
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
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GStreamer rtpsbcdepay Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.

The specific flaw exists within the processing of RTP payload elements. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29787.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

NameVendorStart VersionEnd Version
GstreamerGstreamer*1.28.5 (excluding)
Red Hat Enterprise Linux 10RedHatgstreamer1-plugins-good-0:1.26.7-2.el10_2.8*
Red Hat Enterprise Linux 10.0 Extended Update SupportRedHatgstreamer1-plugins-good-0:1.24.11-1.el10_0.7*
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRedHatgstreamer1-plugins-good-0:1.10.4-4.el7_9.6*
Red Hat Enterprise Linux 8RedHatgstreamer1-plugins-good-0:1.16.1-7.el8_10.7*
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRedHatgstreamer1-plugins-good-0:1.16.1-4.el8_4.5*
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRedHatgstreamer1-plugins-good-0:1.16.1-4.el8_4.5*
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRedHatgstreamer1-plugins-good-0:1.16.1-4.el8_6.6*
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRedHatgstreamer1-plugins-good-0:1.16.1-4.el8_6.6*
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRedHatgstreamer1-plugins-good-0:1.16.1-5.el8_8.6*
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRedHatgstreamer1-plugins-good-0:1.16.1-5.el8_8.6*
Red Hat Enterprise Linux 9RedHatgstreamer1-plugins-good-0:1.22.12-7.el9_8.8*
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRedHatgstreamer1-plugins-good-0:1.18.4-8.el9_2.6*
Red Hat Enterprise Linux 9.4 Update Services for SAP SolutionsRedHatgstreamer1-plugins-good-0:1.22.1-4.el9_4.6*
Red Hat Enterprise Linux 9.6 Extended Update SupportRedHatgstreamer1-plugins-good-0:1.22.12-5.el9_6.6*
Gst-plugins-good1.0Ubuntuesm-infra-legacy/xenial*
Gst-plugins-good1.0Ubuntuesm-infra/bionic*
Gst-plugins-good1.0Ubuntuesm-infra/focal*
Gst-plugins-good1.0Ubuntujammy*
Gst-plugins-good1.0Ubuntunoble*
Gst-plugins-good1.0Ubunturesolute*

Potential Mitigations

References