# SUSE-SU-2026:4501-1: libX11 security update

SUSE-SU-2026:4501-1, released October 5, 2026, fixes 4 CVEs in libX11 (version 1.8.7-150600.3.11.1). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/suse-su-2026-4501-1
- Platform: Linux
- Released: Oct 5, 2026
- Priority: High (Closes CVE-2026-88806, high severity)
- CVEs: 4, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://osv.dev/vulnerability/SUSE-SU-2026:4501-1

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libX11](https://patchblox.com/security/data/product/linux/libx11-libx11.md) | sles 15.6 | 1.8.7-150600.3.11.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-88806](https://patchblox.com/security/data/cve/CVE-2026-88806.md) | High | libX11 XkbGetMap Reply Heap-based Buffer Overflow | 7.5 | 0.0020 |  |
| [CVE-2026-94283](https://patchblox.com/security/data/cve/CVE-2026-94283.md) | Routine | Out-of-bounds read vulnerability in libX11's XIM (X Input Method) attribute parser | 6.5 | 0.0021 |  |
| [CVE-2026-94285](https://patchblox.com/security/data/cve/CVE-2026-94285.md) | Routine | Out-of-bounds read in libX11's byte-oriented codeset parser | 5.1 | 0.0015 |  |
| [CVE-2026-94284](https://patchblox.com/security/data/cve/CVE-2026-94284.md) | Routine | Out-of-bounds read vulnerability in libX11's XIM trigger-keyregistration parser.registration parser | 5.5 | 0.0013 |  |

---

Data as of 2026-11-10T20:03:11Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.