Red Hat Linux Security Advisories & CVEs
4452 advisories tracked · Red Hat Security Data API · direct feeds checked every minute; rate-limited backstops use a safe source cadence
Android app · Google Play
Monitor Red Hat CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.
Security advisories for your Red Hat release
Pick your distribution release to see every advisory issued for it and its severity mix. Fixes ship as errata — keep the system patched. This is the release's advisory history, not a per-package scan.
Official source
Red Hat Security Data API
Red Hat Enterprise Linux errata (RHSA) via the official Red Hat Security Data API — CVE severity, CVSS and affected packages. A credential-free official source.
Latest Red Hat advisories
High [CVE-2026-89564] orphan prefetched skbs before multicast forwarding
orphan prefetched skbs before multicast forwarding. Red Hat rates this important (CVSS 7). Weakness: CWE-825. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4; and 1 more. Affected products named by the advisory: Red Hat package: kernel-rt.
High [CVE-2026-89563] use skb_cow_head in ip6_tnl_xmit
use skb_cow_head() in ip6_tnl_xmit(). Red Hat rates this important (CVSS 7). Weakness: CWE-1341. Affected product named by the advisory: Red Hat OpenShift Container Platform 4.
High [CVE-2026-89560] Require LANDLOCK_ACCESS_FS_MAKE_REG for whiteout creation
Require LANDLOCK_ACCESS_FS_MAKE_REG for whiteout creation. Red Hat rates this moderate (CVSS 7). Weakness: CWE-1220. Affected product named by the advisory: Red Hat OpenShift Container Platform 4.
High [CVE-2026-89559] Prevent integer overflow in __nd_label_validate
Prevent integer overflow in __nd_label_validate(). Red Hat rates this moderate (CVSS 7). Weakness: CWE-787. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 2 more. Affected products named by the advisory: Red Hat OpenShift Container Platform 4; Red Hat package: kernel-rt.
High [CVE-2026-89558] fix still_degraded being inverted in raid10_sync_request
fix still_degraded being inverted in raid10_sync_request(). Red Hat rates this moderate (CVSS 7). Weakness: CWE-480. Affected product named by the advisory: Red Hat OpenShift Container Platform 4.
High [CVE-2026-89555] reload header after pskb_may_pull
reload header after pskb_may_pull(). Red Hat rates this moderate (CVSS 7). Weakness: CWE-825. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4; and 1 more. Affected products named by the advisory: Red Hat package: kernel-rt.
High [CVE-2026-89553] reserve the bo in the info ioctl around the vma lookup
reserve the bo in the info ioctl around the vma lookup. Red Hat rates this moderate (CVSS 7). Weakness: CWE-367. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; and 3 more. Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4; Red Hat package: kernel-rt.
High [CVE-2026-89551] clamp buf->len to avoid underflow
clamp buf->len to avoid underflow. Red Hat rates this moderate (CVSS 7). Weakness: CWE-191. Affected product named by the advisory: Red Hat OpenShift Container Platform 4.
High [CVE-2026-89550] enforce krb5 token minimum length
enforce krb5 token minimum length. Red Hat rates this moderate (CVSS 7). Weakness: CWE-369. Affected product named by the advisory: Red Hat OpenShift Container Platform 4.
High [CVE-2026-89548] always drain cache_cleaner before destroying a cache_detail
always drain cache_cleaner before destroying a cache_detail. Red Hat rates this moderate (CVSS 7). Weakness: CWE-825. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; and 3 more. Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4; Red Hat package: kernel-rt.
High [CVE-2026-89547] Check svc pool percpu counter allocation
Check svc pool percpu counter allocation. Red Hat rates this moderate (CVSS 7). Weakness: CWE-476. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4; and 1 more. Affected products named by the advisory: Red Hat package: kernel-rt.
High [CVE-2026-89545] defer rq_argp and rq_resp free until after RCU grace period
defer rq_argp and rq_resp free until after RCU grace period. Red Hat rates this important (CVSS 7). Weakness: CWE-366. Affected product named by the advisory: Red Hat OpenShift Container Platform 4.
High [CVE-2026-89546] close backchannel before destroying callback service
close backchannel before destroying callback service. Red Hat rates this moderate (CVSS 7). Weakness: CWE-911. Affected product named by the advisory: Red Hat OpenShift Container Platform 4.
High [CVE-2026-89543] fix use-after-free in __rpc_clnt_handle_event and __rpc_clnt_remove_pipedir
fix use-after-free in __rpc_clnt_handle_event and __rpc_clnt_remove_pipedir. Red Hat rates this moderate (CVSS 7). Weakness: CWE-825. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 2 more. Affected products named by the advisory: Red Hat OpenShift Container Platform 4; Red Hat package: kernel-rt.
High [CVE-2026-89541] harden gss_unwrap_resp_priv length checks
harden gss_unwrap_resp_priv length checks. Red Hat rates this moderate (CVSS 7). Weakness: CWE-125. Affected product named by the advisory: Red Hat OpenShift Container Platform 4.
High [CVE-2026-89542] harden gss_krb5_unwrap_v2 against short tokens
harden gss_krb5_unwrap_v2 against short tokens. Red Hat rates this moderate (CVSS 7). Weakness: CWE-125. Affected product named by the advisory: Red Hat OpenShift Container Platform 4.
High [CVE-2026-89540] init gssp_lock before publishing proc entry
init gssp_lock before publishing proc entry. Red Hat rates this moderate (CVSS 7). Weakness: CWE-909. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; and 3 more. Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4; Red Hat package: kernel-rt.
High [CVE-2026-89537] Reject short RFC 4121 MIC tokens in gss_krb5_verify_mic_v2
Reject short RFC 4121 MIC tokens in gss_krb5_verify_mic_v2. Red Hat rates this moderate (CVSS 7). Weakness: CWE-125. Affected product named by the advisory: Red Hat OpenShift Container Platform 4.
High [CVE-2026-89538] Reject krb5 v2 wrap tokens with oversized ec field
Reject krb5 v2 wrap tokens with oversized ec field. Red Hat rates this moderate (CVSS 7). Weakness: CWE-131. Affected product named by the advisory: Red Hat OpenShift Container Platform 4.
High [CVE-2026-89536] wait for in-flight client TLS handshake callback
wait for in-flight client TLS handshake callback. Red Hat rates this important (CVSS 7). Weakness: CWE-911. Affected product named by the advisory: Red Hat OpenShift Container Platform 4.