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Description

A signed integer overflow vulnerability was found in GStreamer's VMnc decoder. A crafted VMnc stream with large cursor dimensions can overflow signed integer payload-size arithmetic, bypassing a length check and leading to out-of-bounds reads. A remote attacker could trick a user into opening a specially crafted VMnc file, potentially causing a crash or information disclosure.

PUBLISHED Reserved 2026-06-08 | Published 2026-06-15 | Updated 2026-06-15 | Assigner redhat




HIGH: 7.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Problem types

Integer Overflow or Wraparound

Product status

Default status
affected

Default status
unknown

Default status
affected

Default status
affected

Default status
affected

Default status
affected

Timeline

2026-05-19:Reported to Red Hat.
2026-06-15:Made public.

Credits

Red Hat would like to thank JUNYI LIU for reporting this issue.

References

access.redhat.com/security/cve/CVE-2026-52722 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2486733 (RHBZ#2486733) issue-tracking

gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5107

cve.org (CVE-2026-52722)

nvd.nist.gov (CVE-2026-52722)

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