CVE-2025-12385

Improper validation of <img> tag size in Text component parser

State: Published
Severity: 8.7 High
Published: Dec 3, 2025
Updated: Jul 29, 2026
Reserved: Oct 28, 2025

Description

Allocation of Resources Without Limits or Throttling, Improper Validation of Specified Quantity in Input vulnerability in The Qt Company Qt on Windows, MacOS, Linux, iOS, Android, x86, ARM, 64 bit, 32 bit allows Excessive Allocation.

This issue affects users of the Text component in Qt Quick. Missing validation of the width and height in the <img> tag could cause an application to become unresponsive.

This issue affects Qt: from 5.0.0 through 6.5.10, from 6.6.0 through 6.8.5, from 6.9.0 through 6.10.0.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	TQtC

Weaknesses

CWE-770 Allocation of Resources Without Limits or Throttling
CWE-1284 Improper Validation of Specified Quantity in Input

Affected Products

Product	Versions
QtQt	5.0.0 through 6.5.10Affected 6.6.0 through 6.8.5Affected 6.9.0 through 6.10.0Affected

References

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