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CVE-2026-89766: Undefined Security Weakness

🗓️ 11 Sep 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com👁 7 Views

Linux kernel pidfd_ioctl lacks exec_update_lock, allowing access to incorrect namespaces.

Related
Refs
ReporterTitlePublishedViews
Family
nessus
Tenable Nessus
Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-3187)
12 Oct 202600:00
–nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-89766
12 Sep 202600:00
–nessus
cve
CVE
CVE-2026-89766
11 Sep 202619:47
–cve
cvelist
Cvelist
CVE-2026-89766 pidfd: hold exec_update_lock around namespace ioctl
11 Sep 202619:47
–cvelist
debian
Debian
[SECURITY] [DSA 6568-1] linux security update
16 Oct 202613:39
–debian
debiancve
Debian CVE
CVE-2026-89766
11 Sep 202619:47
–debiancve
oraclelinux
Oracle linux
Unbreakable Enterprise kernel security update
15 Oct 202600:00
–oraclelinux
euvd
EUVD
EUVD-2026-76678
11 Sep 202619:47
–euvd
nvd
NVD
CVE-2026-89766
11 Sep 202620:20
–nvd
osv_bell
osv_bell
BELL-CVE-2026-89766
15 Sep 202606:05
–osv_bell
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03 Oct 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
EPSS0.00209
7