Red Hat Security Advisory: kernel security update
Affects Linux kernelSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited.
Data as of 29 Oct 2026, 07:26 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 13% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 26 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
Public exploit code: GitHub proofs of concept
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
AI-suggested
Red Hat has released an official security update for the Linux kernel in Red Hat Enterprise Linux 9.6 Extended Update Support that addresses these vulnerabilities. Users should apply the update promptly and reboot their systems to ensure the fixes take effect. Red Hat recommends treating all kernel errata as security-relevant and advises against delaying updates to avoid exposure to known vulnerabilities.
Description
Red Hat has released a security advisory for the Linux kernel packages addressing two vulnerabilities related to BPF JIT compilation. The fixes include support for hardening against JIT spraying (CVE-2026-64508) and enabling IBPB flush on BPF JIT allocation (CVE-2026-64507). These updates are part of Red Hat Enterprise Linux 9.6 Extended Update Support. The kernel update is rated as having a moderate security impact. Systems must be rebooted after applying the update for the fixes to take effect.
References
- access.redhat.com/errata/RHSA-2026:89890 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2507153 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2507218 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_89890.json (opens in a new tab)