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CVE-2026-88914

Gstreamer1-plugins-good: gstreamer: integer overflow and out-of-bounds read in qtdemux cea-608 closed-caption parser

Published
Last modified
published
Not listed in CISA KEV
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

A flaw was found in GStreamer's gst-plugins-good isomp4 plugin. When processing a specially crafted MP4 or MOV file containing CEA-608 closed-caption data, an integer overflow in 32-bit unsigned arithmetic can bypass a bounds check in the caption parser. This leads to an out-of-bounds heap read of up to 244 bytes, which is then included in the downstream caption output. An attacker could exploit this by tricking a user into opening a malicious media file, potentially resulting in disclosure of adjacent heap memory or application crash.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

References 4

access.redhat.com

bugzilla.redhat.com

gitlab.freedesktop.org

gstreamer.freedesktop.org