Linux · Red Hat · Security advisory · September 13, 2026

RHSA-2026:63163: Security update for 34 packages

RHSA-2026:63163, released September 13, 2026, fixes 7 CVEs across 34 products. None of them is reported as exploited. Patch Radar priority: High.

High
CVEs closed
7
None rated Critical
Exploited
0
None reported
Highest CVSS
8.8
Base score, 0 to 10
Highest EPSS
0.0080
56th percentile

Priority of the 7 CVEs

Patch now 0 Urgent 0 High 7 Routine 0

Fixed package versions

ProductReleaseFixed in
aardvark-dnsRHEL 82:1.10.1-2.module+el8.10.0+24790+ef71b018
buildahRHEL 82:1.33.14-6.module+el8.10.0+24790+ef71b018
buildah-testsRHEL 82:1.33.14-6.module+el8.10.0+24790+ef71b018
cockpit-podmanRHEL 80:84.1-1.module+el8.10.0+24790+ef71b018
conmonRHEL 83:2.1.10-1.module+el8.10.0+24790+ef71b018
container-selinuxRHEL 82:2.229.0-3.module+el8.10.0+24790+ef71b018
containernetworking-pluginsRHEL 81:1.4.0-10.module+el8.10.0+24790+ef71b018
containers-commonRHEL 82:1-82.module+el8.10.0+24790+ef71b018
critRHEL 80:3.18-5.module+el8.10.0+24790+ef71b018
criuRHEL 80:3.18-5.module+el8.10.0+24790+ef71b018
criu-develRHEL 80:3.18-5.module+el8.10.0+24790+ef71b018
criu-libsRHEL 80:3.18-5.module+el8.10.0+24790+ef71b018
crunRHEL 80:1.14.3-4.module+el8.10.0+24790+ef71b018
fuse-overlayfsRHEL 80:1.13-1.module+el8.10.0+24790+ef71b018
libslirpRHEL 80:4.4.0-2.module+el8.10.0+24790+ef71b018
libslirp-develRHEL 80:4.4.0-2.module+el8.10.0+24790+ef71b018
netavarkRHEL 82:1.10.3-1.module+el8.10.0+24790+ef71b018
oci-seccomp-bpf-hookRHEL 80:1.2.10-3.module+el8.10.0+24790+ef71b018
podmanRHEL 84:4.9.4-37.module+el8.10.0+24790+ef71b018
podman-catatonitRHEL 84:4.9.4-37.module+el8.10.0+24790+ef71b018
podman-dockerRHEL 84:4.9.4-37.module+el8.10.0+24790+ef71b018
podman-gvproxyRHEL 84:4.9.4-37.module+el8.10.0+24790+ef71b018
podman-pluginsRHEL 84:4.9.4-37.module+el8.10.0+24790+ef71b018
podman-remoteRHEL 84:4.9.4-37.module+el8.10.0+24790+ef71b018
podman-testsRHEL 84:4.9.4-37.module+el8.10.0+24790+ef71b018
python3-criuRHEL 80:3.18-5.module+el8.10.0+24790+ef71b018
python3-podmanRHEL 80:4.9.0-3.module+el8.10.0+24790+ef71b018
runcRHEL 84:1.2.9-6.module+el8.10.0+24790+ef71b018
skopeoRHEL 82:1.14.6-4.module+el8.10.0+24790+ef71b018
skopeo-testsRHEL 82:1.14.6-4.module+el8.10.0+24790+ef71b018
slirp4netnsRHEL 80:1.2.3-1.module+el8.10.0+24790+ef71b018
toolboxRHEL 80:0.0.99.5.1-1.module+el8.10.0+24790+ef71b018
toolbox-testsRHEL 80:0.0.99.5.1-1.module+el8.10.0+24790+ef71b018
udicaRHEL 80:0.2.6-21.module+el8.10.0+24790+ef71b018

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
High CVE-2026-42499 Quadratic string concatenation in consumePhrase in net/mail8.8 0.0080 None reported
High CVE-2026-33818 Enforce maximum recursion depth in encoding/asn18.8 0.0057 None reported
High CVE-2026-56853 Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http8.8 0.0057 None reported
High CVE-2026-56859 Add recursion depth guard during decode in encoding/xml8.8 0.0057 None reported
High CVE-2026-56862 Limit handshake messages we are willing to accept post-handshake in crypto/tls8.8 0.0057 None reported
High CVE-2026-56860 Avoid quadratic complexity in resolvePath in net/url8.8 0.0055 None reported
High CVE-2026-56858 Fix Javascript regexp context tracking in html/template8.8 0.0031 None reported
Showing 1 to 7 of 7 1

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