# RHSA-2026:19342: Security update for 7 packages

RHSA-2026:19342, released April 30, 2026, fixes 5 CVEs across 7 products. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-19342
- Platform: Linux
- Released: Apr 30, 2026
- Priority: Urgent (Closes CVE-2026-34000, rated Critical)
- CVEs: 5, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:19342

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [tigervnc](https://patchblox.com/security/data/product/linux/tigervnc.md) | RHEL 9 | 0:1.15.0-7.el9_8.1 |
| [tigervnc-icons](https://patchblox.com/security/data/product/linux/tigervnc-icons.md) | RHEL 9 | 0:1.15.0-7.el9_8.1 |
| [tigervnc-license](https://patchblox.com/security/data/product/linux/tigervnc-license.md) | RHEL 9 | 0:1.15.0-7.el9_8.1 |
| [tigervnc-selinux](https://patchblox.com/security/data/product/linux/tigervnc-selinux.md) | RHEL 9 | 0:1.15.0-7.el9_8.1 |
| [tigervnc-server](https://patchblox.com/security/data/product/linux/tigervnc-server.md) | RHEL 9 | 0:1.15.0-7.el9_8.1 |
| [tigervnc-server-minimal](https://patchblox.com/security/data/product/linux/tigervnc-server-minimal.md) | RHEL 9 | 0:1.15.0-7.el9_8.1 |
| [tigervnc-server-module](https://patchblox.com/security/data/product/linux/tigervnc-server-module.md) | RHEL 9 | 0:1.15.0-7.el9_8.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-34000](https://patchblox.com/security/data/cve/CVE-2026-34000.md) | Urgent | xorg-server: A flaw was found in the X.Org X server | 9.1 | 0.0049 |  |
| [CVE-2026-33999](https://patchblox.com/security/data/cve/CVE-2026-33999.md) | High | Xorg: xwayland: x.org x server: denial of service via integer underflow in xkb compatibility map handling | 7.8 | 0.0038 |  |
| [CVE-2026-34001](https://patchblox.com/security/data/cve/CVE-2026-34001.md) | High | xorg-x11-server-common: X.Org is an open-source implementation of the X Window System | 7.8 | 0.0026 |  |
| [CVE-2026-34352](https://patchblox.com/security/data/cve/CVE-2026-34352.md) | High | tigervnc: Virtual Network Computing (VNC) is a remote display system which allows users to view a computing desktop environment... | 9.8 | 0.0025 |  |
| [CVE-2026-34003](https://patchblox.com/security/data/cve/CVE-2026-34003.md) | High | xorg-x11-server-common: X.Org is an open-source implementation of the X Window System | 7.8 | 0.0025 |  |

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Data as of 2026-11-07T12:40:37Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo