RHSA-2026:26535
Advisory lineage Upstream: 24 Downstream: 0
Published: 18 Jun 2026, 10:09
Last modified:18 Jul 2026, 10:09
Vulnerability Summary
Overall Risk (default)
medium
35/100 CVSS Score
8.8 HIGH
3.1 (osv_red_hat)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
18 Jun 2026, 10:09
Published
Vulnerability first disclosed
18 Jul 2026, 10:09
Last Modified
Vulnerability information updated
Description
Red Hat Security Advisory: kernel security, bug fix, and enhancement update
CVSS Metrics
- v3.1•HIGH•Score: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Systems
- redhat•bpftool
< 0:4.18.0-305.194.1.el8_4
- redhat•bpftool-debuginfo
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-abi-stablelists
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-core
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-debug
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-debug-core
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-debug-debuginfo
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-debug-devel
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-debug-modules
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-debug-modules-extra
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-debuginfo
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-debuginfo-common-x86_64
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-devel
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-doc
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-modules
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-modules-extra
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-tools
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-tools-debuginfo
< 0:4.18.0-305.194.1.el8_4
- redhat•kernel-tools-libs
< 0:4.18.0-305.194.1.el8_4
- redhat•perf
< 0:4.18.0-305.194.1.el8_4
- redhat•perf-debuginfo
< 0:4.18.0-305.194.1.el8_4
- redhat•python3-perf
< 0:4.18.0-305.194.1.el8_4
- redhat•python3-perf-debuginfo
< 0:4.18.0-305.194.1.el8_4
References (125)
- https://access.redhat.com/errata/RHSA-2026:26535
- https://access.redhat.com/security/updates/classification/#critical
- https://bugzilla.redhat.com/show_bug.cgi?id=2351619
- https://bugzilla.redhat.com/show_bug.cgi?id=2396405
- https://bugzilla.redhat.com/show_bug.cgi?id=2414506
- https://bugzilla.redhat.com/show_bug.cgi?id=2414521
- https://bugzilla.redhat.com/show_bug.cgi?id=2414523
- https://bugzilla.redhat.com/show_bug.cgi?id=2424881
- https://bugzilla.redhat.com/show_bug.cgi?id=2429065
- https://bugzilla.redhat.com/show_bug.cgi?id=2429104
- https://bugzilla.redhat.com/show_bug.cgi?id=2432664
- https://bugzilla.redhat.com/show_bug.cgi?id=2436802
- https://bugzilla.redhat.com/show_bug.cgi?id=2439947
- https://bugzilla.redhat.com/show_bug.cgi?id=2440630
- https://bugzilla.redhat.com/show_bug.cgi?id=2448594
- https://bugzilla.redhat.com/show_bug.cgi?id=2451218
- https://bugzilla.redhat.com/show_bug.cgi?id=2461759
- https://bugzilla.redhat.com/show_bug.cgi?id=2464351
- https://bugzilla.redhat.com/show_bug.cgi?id=2464397
- https://bugzilla.redhat.com/show_bug.cgi?id=2467005
- https://bugzilla.redhat.com/show_bug.cgi?id=2467014
- https://bugzilla.redhat.com/show_bug.cgi?id=2467059
- https://bugzilla.redhat.com/show_bug.cgi?id=2467064
- https://bugzilla.redhat.com/show_bug.cgi?id=2467210
- https://bugzilla.redhat.com/show_bug.cgi?id=2481486
- https://bugzilla.redhat.com/show_bug.cgi?id=2482564
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_26535.json
- https://access.redhat.com/security/cve/CVE-2023-53372
- https://www.cve.org/CVERecord?id=CVE-2023-53372
- https://nvd.nist.gov/vuln/detail/CVE-2023-53372
- https://lore.kernel.org/linux-cve-announce/2025091855-CVE-2023-53372-4d9e@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-21858
- https://www.cve.org/CVERecord?id=CVE-2025-21858
- https://nvd.nist.gov/vuln/detail/CVE-2025-21858
- https://lore.kernel.org/linux-cve-announce/2025031215-CVE-2025-21858-3986@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-40135
- https://www.cve.org/CVERecord?id=CVE-2025-40135
- https://nvd.nist.gov/vuln/detail/CVE-2025-40135
- https://lore.kernel.org/linux-cve-announce/2025111255-CVE-2025-40135-67ca@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-40158
- https://www.cve.org/CVERecord?id=CVE-2025-40158
- https://nvd.nist.gov/vuln/detail/CVE-2025-40158
- https://lore.kernel.org/linux-cve-announce/2025111258-CVE-2025-40158-4c9d@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-40170
- https://www.cve.org/CVERecord?id=CVE-2025-40170
- https://nvd.nist.gov/vuln/detail/CVE-2025-40170
- https://lore.kernel.org/linux-cve-announce/2025111259-CVE-2025-40170-d39d@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-68366
- https://www.cve.org/CVERecord?id=CVE-2025-68366
- https://nvd.nist.gov/vuln/detail/CVE-2025-68366
- https://lore.kernel.org/linux-cve-announce/2025122459-CVE-2025-68366-b367@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-68800
- https://www.cve.org/CVERecord?id=CVE-2025-68800
- https://nvd.nist.gov/vuln/detail/CVE-2025-68800
- https://lore.kernel.org/linux-cve-announce/2026011307-CVE-2025-68800-39d2@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-71089
- https://www.cve.org/CVERecord?id=CVE-2025-71089
- https://nvd.nist.gov/vuln/detail/CVE-2025-71089
- https://lore.kernel.org/linux-cve-announce/2026011341-CVE-2025-71089-a642@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-23001
- https://www.cve.org/CVERecord?id=CVE-2026-23001
- https://nvd.nist.gov/vuln/detail/CVE-2026-23001
- https://lore.kernel.org/linux-cve-announce/2026012534-CVE-2026-23001-7ab0@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-23097
- https://www.cve.org/CVERecord?id=CVE-2026-23097
- https://nvd.nist.gov/vuln/detail/CVE-2026-23097
- https://lore.kernel.org/linux-cve-announce/2026020427-CVE-2026-23097-a591@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-23191
- https://www.cve.org/CVERecord?id=CVE-2026-23191
- https://nvd.nist.gov/vuln/detail/CVE-2026-23191
- https://lore.kernel.org/linux-cve-announce/2026021433-CVE-2026-23191-f990@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-23216
- https://www.cve.org/CVERecord?id=CVE-2026-23216
- https://nvd.nist.gov/vuln/detail/CVE-2026-23216
- https://lore.kernel.org/linux-cve-announce/2026021800-CVE-2026-23216-6c63@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-23243
- https://www.cve.org/CVERecord?id=CVE-2026-23243
- https://nvd.nist.gov/vuln/detail/CVE-2026-23243
- https://lore.kernel.org/linux-cve-announce/2026031816-CVE-2026-23243-b88e@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-23392
- https://www.cve.org/CVERecord?id=CVE-2026-23392
- https://nvd.nist.gov/vuln/detail/CVE-2026-23392
- https://lore.kernel.org/linux-cve-announce/2026032548-CVE-2026-23392-fd9d@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-31685
- https://www.cve.org/CVERecord?id=CVE-2026-31685
- https://nvd.nist.gov/vuln/detail/CVE-2026-31685
- https://lore.kernel.org/linux-cve-announce/2026042545-CVE-2026-31685-3fcc@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43037
- https://www.cve.org/CVERecord?id=CVE-2026-43037
- https://nvd.nist.gov/vuln/detail/CVE-2026-43037
- https://lore.kernel.org/linux-cve-announce/2026050102-CVE-2026-43037-0346@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43038
- https://www.cve.org/CVERecord?id=CVE-2026-43038
- https://nvd.nist.gov/vuln/detail/CVE-2026-43038
- https://lore.kernel.org/linux-cve-announce/2026050103-CVE-2026-43038-b591@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43110
- https://www.cve.org/CVERecord?id=CVE-2026-43110
- https://nvd.nist.gov/vuln/detail/CVE-2026-43110
- https://lore.kernel.org/linux-cve-announce/2026050624-CVE-2026-43110-7309@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43116
- https://www.cve.org/CVERecord?id=CVE-2026-43116
- https://nvd.nist.gov/vuln/detail/CVE-2026-43116
- https://lore.kernel.org/linux-cve-announce/2026050626-CVE-2026-43116-08a5@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43158
- https://www.cve.org/CVERecord?id=CVE-2026-43158
- https://nvd.nist.gov/vuln/detail/CVE-2026-43158
- https://lore.kernel.org/linux-cve-announce/2026050631-CVE-2026-43158-cc20@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43163
- https://www.cve.org/CVERecord?id=CVE-2026-43163
- https://nvd.nist.gov/vuln/detail/CVE-2026-43163
- https://lore.kernel.org/linux-cve-announce/2026050632-CVE-2026-43163-86e1@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43190
- https://www.cve.org/CVERecord?id=CVE-2026-43190
- https://nvd.nist.gov/vuln/detail/CVE-2026-43190
- https://lore.kernel.org/linux-cve-announce/2026050642-CVE-2026-43190-f1c9@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-46227
- https://www.cve.org/CVERecord?id=CVE-2026-46227
- https://nvd.nist.gov/vuln/detail/CVE-2026-46227
- https://lore.kernel.org/linux-cve-announce/2026052838-CVE-2026-46227-4bf1@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-46243
- https://access.redhat.com/security/vulnerabilities/RHSB-2026-005
- https://www.cve.org/CVERecord?id=CVE-2026-46243
- https://nvd.nist.gov/vuln/detail/CVE-2026-46243
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3da1fdf4efbc490041eb4f836bf596201203f8f2
- https://lore.kernel.org/linux-cve-announce/2026060140-CVE-2026-46243-3d1c@gregkh/