What is RHSA-2026:13566?

RHSA-2026:13566 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: kernel security update

Which CVE IDs does RHSA-2026:13566 cover?

RHSA-2026:13566 covers the following CVE IDs: CVE-2026-31419, CVE-2026-31431, CVE-2026-43077, CVE-2026-23270, CVE-2026-31402. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:13566?

RHSA-2026:13566 has a CVSS v3 base score of 7.8, published by Red Hat Product Security.

RHSA-2026:13566HighCVSS 7.8

Red Hat Security Advisory: kernel security update

Vendor

Red Hat Product Security

Published

May 4, 2026

Last Modified

May 26, 2026

🔗 CVE IDs covered (5)

CVE-2026-31419 →CVE-2026-31431 →CVE-2026-43077 →CVE-2026-23270 →CVE-2026-31402 →

📋 Description

CVE-2026-23270 — kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation CVE-2026-31402 — kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache CVE-2026-31419 — kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service CVE-2026-31431 — kernel: crypto: algif_aead - Revert to operating out-of-place CVE-2026-43077 — kernel: crypto: algif_aead - Fix minimum RX size check for decryption

🔗 References (7)

selfhttps://access.redhat.com/errata/RHSA-2026:13566
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2448745
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2454844
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2457829
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2460538
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_13566.json