Heap-based Buffer Overflow Vulnerability in GStreamer
CVE-2026-18298

7.8HIGH

Key Information:

Vendor

Gstreamer

Status
Gstreamer
Vendor
CVE Published:
20 August 2026

What is CVE-2026-18298?

This vulnerability in GStreamer arises during the parsing of PNG files due to inadequate validation of user-supplied data lengths. By exploiting this flaw, a remote attacker can execute arbitrary code by convincing a user to visit a malicious webpage or interact with a rogue PNG file, thus compromising the security of the affected installation.

Affected Version(s)

GStreamer 13fcb641ed33d1472e4ffdec2846180b15405053

References

https://www.zerodayinitiative.com/advisories/ZDI-26-466/
x_research-advisory
https://gstreamer.freedesktop.org/security/sa-2026-0052.html
vendor-advisory

CVSS V3.0

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.