Vulnerability feed
CVE and vendor PSIRT advisories from 13 sources, last 30 days. Updated hourly, last run
| Expand | Severity |
Score |
Advisory |
Title |
Source |
Flags |
Published |
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| High | 7.5 | RHSA-2026:89730 |
libX11 security update
Red HatRed Hat Enterprise Linux, Red Hat Enterprise Linux for x86_64 8, Red Hat Enterprise Linux for IBM z Systems 8, Red Hat Enterprise Linux for Power, little endian 8, Red Hat Enterprise Linux for ARM 64 8, Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10, Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10, Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10, Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10
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Red Hat Security Advisories | |||
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RHSA-2026:89730CVE-2026-88806libX11 security update
Executive summaryA security update for libX11, the core X11 client library, is available for Red Hat Enterprise Linux 8 systems. Red Hat rates the issue as Important and says it is a heap-based buffer overflow that can be triggered through a malicious X server. Red Hat recommends applying the updated libX11 packages, version 1.6.8-10.el8_10, as described in its update instructions. Technical summaryThe flaw is tracked as CVE-2026-88806 and is classified as a heap-based buffer overflow in libX11 triggered via a malicious X server. The advisory does not state the attack preconditions beyond a malicious X server, and it does not give a CVSS score in the text provided, referring instead to the CVE page. The fixed package version is libX11-1.6.8-10.el8_10 across the listed Red Hat Enterprise Linux 8 and Extended Life Cycle 8.10 architectures. The advisory does not state any workaround or mitigation, nor any detection guidance, and it does not state whether the issue is being exploited in the wild. Summaries are generated by AI from the linked advisory text. Confirm versions and fixes at the source. Dropped extracted product not named in the source: X.Org libX11 Summarized from access.redhat.com/errata/RHSA-2026:89730 Impact if exploitedConfidentialityHigh IntegrityHigh AvailabilityHigh
How it is exploited
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H AffectsRed HatRed Hat Enterprise LinuxRed Hat Enterprise Linux for x86_64 8Red Hat Enterprise Linux for IBM z Systems 8Red Hat Enterprise Linux for Power, little endian 8Red Hat Enterprise Linux for ARM 64 8Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10
Red Hat Product SecurityPublished
Read the advisory
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