CVE-2026-1766
Received Received - Intake
Heap Buffer Overflow in GNOME Localsearch MP3 Extractor

Publication date: 2026-06-16

Last updated on: 2026-06-16

Assigner: Fedora Project

Description
A flaw was found in GNOME localsearch (previously known as tracker-miners) MP3 Extractor, specifically within the tracker-extract-mp3 component. This heap buffer overflow vulnerability occurs when processing specially crafted MP3 files containing malformed ID3v2.3 COMM (Comment) tags. An attacker could exploit this by providing a malicious MP3 file, leading to a denial of service (DoS), which causes an application crash, and potentially disclosing sensitive information from the heap memory.
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Meta Information
Published
2026-06-16
Last Modified
2026-06-16
Generated
2026-06-16
AI Q&A
2026-06-16
EPSS Evaluated
N/A
NVD
CVE-2026-1766
EUVD
EUVD-2026-37027
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
gnome tracker-miners From 2.6.0 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-805 The product uses a sequential operation to read or write a buffer, but it uses an incorrect length value that causes it to access memory that is outside of the bounds of the buffer.
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Executive Summary

CVE-2026-1766 is a heap buffer overflow vulnerability found in the GNOME localsearch MP3 Extractor component of tracker-miners, specifically in the function that processes ID3v2.3 COMM (Comment) tags in MP3 files.

The flaw occurs because the code incorrectly calculates a buffer offset without verifying if it exceeds the size of the data frame, leading to an underflow in length calculation. This causes out-of-bounds memory access when the system attempts to convert the data, resulting in a denial of service (application crash) and potentially leaking sensitive heap memory data.

Impact Analysis

An attacker can exploit this vulnerability by providing a specially crafted malicious MP3 file containing malformed ID3v2.3 COMM tags.

The impact includes causing a denial of service (DoS) by crashing the application processing the MP3 file, which can disrupt normal operations.

Additionally, there is a potential risk of sensitive information disclosure from heap memory due to out-of-bounds reads triggered by the vulnerability.

Detection Guidance

This vulnerability can be detected by testing the GNOME localsearch MP3 Extractor component with specially crafted MP3 files containing malformed ID3v2.3 COMM tags that trigger the heap buffer overflow.

A proof-of-concept file that triggers the crash is available in base64 format, which can be used to test if the system is vulnerable.

To detect the vulnerability on your system, you can run the tracker-extract-mp3 component against the malicious MP3 file and observe if it causes a denial of service or application crash (SIGSEGV).

  • Use a command like: `tracker-extract-mp3 <malicious_mp3_file>` and monitor for crashes or abnormal termination.
  • Monitor system logs for segmentation faults or crashes related to tracker-extract-mp3.
Mitigation Strategies

Immediate mitigation steps include avoiding processing untrusted or suspicious MP3 files with the GNOME localsearch MP3 Extractor component until a patch is applied.

Apply any available security updates or patches that add bounds checking to the tracker-extract-mp3 component to prevent the heap buffer overflow.

If a patch is not yet available, consider disabling or restricting the use of tracker-extract-mp3 or the tracker-miners service to limit exposure.

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