security update for qt5-qtbase
Description
A denial of service vulnerability (CVE-2026-9499) exists in the Qt software toolkit due to an out-of-bounds read in text codec handling. This affects certain versions of Qt packages used in Red Hat Hardened Images. A security update addressing this vulnerability is available from Red Hat.
Affected software
pkg:rpm/openEuler/qt6-qt5compat&distro=openEuler-24.03-LTS-SP3Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-9499 is a denial of service vulnerability caused by an out-of-bounds read in the text codec handling component of the Qt software toolkit. This flaw affects specific versions of Qt packages distributed with Red Hat Hardened Images. Red Hat has released a security update that includes fixed versions of qt6 and related packages to mitigate this issue.
Potential Impact
Successful exploitation of this vulnerability can cause a denial of service condition in affected Qt software, potentially leading to application crashes or instability. There are no known exploits in the wild at this time.
Mitigation Recommendations
A security update is available from Red Hat that addresses this vulnerability. Users of affected Red Hat Hardened Images should apply the provided update to fixed package versions such as qt6 6.11.1-2.hum1 and related RPMs. No additional mitigation actions are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-8cm2-5hwv-mhv9
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-9499"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a5fd1501010f89cc21c8be4
Added to database: 07/21/2026, 20:06:40 UTC
Last enriched: 10/08/2026, 22:53:09 UTC
Last updated: 10/19/2026, 06:48:21 UTC
Views: 166
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