Executive Summary

CVE-2026-52719 is an out-of-bounds read vulnerability found in the VA JPEG decoder component of GStreamer's gst-plugins-bad package. The vulnerability occurs because the JPEG parser reads a segment length value from the bitstream without properly validating it against the actual available data.

This improper validation causes the decoder to create a byte reader that reads beyond the allocated buffer, which can lead to a crash or potentially disclose information.

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Compliance Impact

This vulnerability involves a potential information disclosure due to an out-of-bounds read in the VA JPEG decoder. Such information disclosure risks could impact compliance with data protection regulations like GDPR and HIPAA, which require safeguarding personal and sensitive information against unauthorized access.

However, the provided information does not specify the nature or sensitivity of the data that could be exposed, nor does it detail any direct compliance implications or mitigation measures related to these standards.

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Impact Analysis

If exploited, this vulnerability can cause the application using the vulnerable GStreamer VA JPEG decoder to crash, resulting in a denial of service.

Additionally, it may lead to potential information disclosure by reading memory beyond the intended buffer, which could expose sensitive data.

The attack vector involves a remote attacker tricking a user into opening a specially crafted JPEG file.

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Detection Guidance

Detection of this vulnerability involves identifying the presence of the vulnerable GStreamer VA JPEG decoder component, specifically the gst-plugins-bad package versions prior to 1.28.4 or 1.28.5.

Since the vulnerability is triggered by processing specially crafted JPEG files, monitoring for crashes or abnormal behavior in applications using GStreamer to parse JPEG images can be indicative.

Commands to detect the vulnerable package version on a Linux system might include:

• rpm -q gstreamer1-plugins-bad-free
• dpkg -l | grep gstreamer1-plugins-bad-free

Additionally, scanning network traffic for suspicious JPEG files or using file integrity monitoring to detect unexpected JPEG files could help identify exploitation attempts.

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Mitigation Strategies

The immediate mitigation step is to update the GStreamer gst-plugins-bad package to version 1.28.4 or later, where the vulnerability has been fixed.

If updating is not immediately possible, consider restricting or disabling the processing of untrusted JPEG files in applications that use the vulnerable VA JPEG decoder.

Additionally, applying network-level controls to block or monitor suspicious JPEG files and educating users to avoid opening JPEG files from untrusted sources can reduce risk.

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