CVE-2026-79677

tomcat9: Missing release of resource after effective lifetime, Comparison using wrong factors vulnerability in Apache Tomcat a...

CVE-2026-79677 is fixed in 30 products on 1 platform, first by RHSA-2026:93618, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0042
36th percentile

Missing release of resource after effective lifetime, Comparison using wrong factors vulnerability in Apache Tomcat allows a denial of service as a result of lost time outs for asynchronous WebSocket writes. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.

Where it's fixed

ProductFixed inFixReleased
Linux
jws7-mod_cluster · RHEL 10 2.1.1-1.Final_redhat_00001.1.el10jws RHSA-2026:93618 Sep 23, 2026
jws7-tomcat · RHEL 10 11.0.21-10.redhat_00010.1.el10jws RHSA-2026:93618 Sep 23, 2026
jws7-tomcat-native · RHEL 10 1.3.7-4.redhat_4.el10jws RHSA-2026:93618 Sep 23, 2026
libtcnative-1-0 · opensuse-leap 16.0 1.3.9-160000.1.1 OPENSUSE-SU-2026:21984-1 Sep 30, 2026
libtcnative-1-0 · sles 15.6 1.3.9-150600.16.9.2 SUSE-SU-2026:4544-1 Oct 6, 2026
libtcnative-1-0 · sles 15.7 1.3.9-150600.16.9.2 SUSE-SU-2026:4544-1 Oct 6, 2026
libtcnative-1-0 · sles 16.0 1.3.9-160000.1.1 SUSE-SU-2026:23985-1 Sep 30, 2026
libtcnative-2-0 · opensuse-leap 16.0 2.0.16-160000.1.1 OPENSUSE-SU-2026:21984-1 Sep 30, 2026
libtcnative-2-0 · sles 16.0 2.0.16-160000.1.1 SUSE-SU-2026:23985-1 Sep 30, 2026
tomcat · opensuse-leap 16.0 9.0.122-160000.1.1 OPENSUSE-SU-2026:21984-1 Sep 30, 2026
tomcat · sles 15.6 9.0.122-150200.123.2 SUSE-SU-2026:4546-1 Oct 6, 2026
tomcat · sles 15.7 9.0.122-150200.123.2 SUSE-SU-2026:4546-1 Oct 6, 2026
tomcat · sles 16.0 9.0.122-160000.1.1 SUSE-SU-2026:23985-1 Sep 30, 2026
tomcat10 · Debian 14 10.1.60-1 DEBIAN-CVE-2026-79677 Sep 24, 2026
tomcat10 · amzn 2023 1:10.1.60-1.amzn2023.0.1 ALAS2023-2026-3165 Nov 7, 2026
tomcat10 · opensuse-leap 16.0 10.1.60-160000.1.1 OPENSUSE-SU-2026:21984-1 Sep 30, 2026
tomcat10 · sles 15.6 10.1.60-150200.5.82.2 SUSE-SU-2026:4546-1 Oct 6, 2026
tomcat10 · sles 15.7 10.1.60-150200.5.82.2 SUSE-SU-2026:4546-1 Oct 6, 2026
tomcat10 · sles 16.0 10.1.60-160000.1.1 SUSE-SU-2026:23985-1 Sep 30, 2026
tomcat10-admin-webapps · amzn 2023 1:10.1.60-1.amzn2023.0.1 ALAS2023-2026-3165 Nov 7, 2026
tomcat10-docs-webapp · amzn 2023 1:10.1.60-1.amzn2023.0.1 ALAS2023-2026-3165 Nov 7, 2026
tomcat10-el-5.0-api · amzn 2023 1:10.1.60-1.amzn2023.0.1 ALAS2023-2026-3165 Nov 7, 2026
tomcat10-jsp-3.1-api · amzn 2023 1:10.1.60-1.amzn2023.0.1 ALAS2023-2026-3165 Nov 7, 2026
tomcat10-lib · amzn 2023 1:10.1.60-1.amzn2023.0.1 ALAS2023-2026-3165 Nov 7, 2026
tomcat10-servlet-6.0-api · amzn 2023 1:10.1.60-1.amzn2023.0.1 ALAS2023-2026-3165 Nov 7, 2026
tomcat10-webapps · amzn 2023 1:10.1.60-1.amzn2023.0.1 ALAS2023-2026-3165 Nov 7, 2026
tomcat11 · amzn 2023 1:11.0.26-1.amzn2023.0.1 ALAS2023-2026-3151 Nov 7, 2026
tomcat11 · opensuse-leap 16.0 11.0.26-160000.1.1 OPENSUSE-SU-2026:21984-1 Sep 30, 2026
tomcat11 · sles 15.6 11.0.26-150600.13.36.2 SUSE-SU-2026:4544-1 Oct 6, 2026
tomcat11 · sles 15.7 11.0.26-150600.13.36.2 SUSE-SU-2026:4544-1 Oct 6, 2026
tomcat11 · sles 16.0 11.0.26-160000.1.1 SUSE-SU-2026:23985-1 Sep 30, 2026
tomcat11-admin-webapps · amzn 2023 1:11.0.26-1.amzn2023.0.1 ALAS2023-2026-3151 Nov 7, 2026
tomcat11-docs-webapp · amzn 2023 1:11.0.26-1.amzn2023.0.1 ALAS2023-2026-3151 Nov 7, 2026
tomcat11-el-6.0-api · amzn 2023 1:11.0.26-1.amzn2023.0.1 ALAS2023-2026-3151 Nov 7, 2026
tomcat11-jsp-4.0-api · amzn 2023 1:11.0.26-1.amzn2023.0.1 ALAS2023-2026-3151 Nov 7, 2026
tomcat11-lib · amzn 2023 1:11.0.26-1.amzn2023.0.1 ALAS2023-2026-3151 Nov 7, 2026
tomcat11-servlet-6.1-api · amzn 2023 1:11.0.26-1.amzn2023.0.1 ALAS2023-2026-3151 Nov 7, 2026
tomcat11-webapps · amzn 2023 1:11.0.26-1.amzn2023.0.1 ALAS2023-2026-3151 Nov 7, 2026
tomcat9 · Debian 12.15 (bookworm) 9.0.70-2 DEBIAN-CVE-2026-79677 Sep 24, 2026
tomcat9 · Debian 13.5 (trixie) 9.0.70-2 DEBIAN-CVE-2026-79677 Sep 24, 2026
tomcat9 · Debian 14 9.0.70-2 DEBIAN-CVE-2026-79677 Sep 24, 2026
tomcat9 · amzn 2023 1:9.0.122-1.amzn2023.0.1 ALAS2023-2026-3166 Nov 7, 2026
tomcat9-admin-webapps · amzn 2023 1:9.0.122-1.amzn2023.0.1 ALAS2023-2026-3166 Nov 7, 2026
tomcat9-docs-webapp · amzn 2023 1:9.0.122-1.amzn2023.0.1 ALAS2023-2026-3166 Nov 7, 2026
tomcat9-el-3.0-api · amzn 2023 1:9.0.122-1.amzn2023.0.1 ALAS2023-2026-3166 Nov 7, 2026
tomcat9-jsp-2.3-api · amzn 2023 1:9.0.122-1.amzn2023.0.1 ALAS2023-2026-3166 Nov 7, 2026
tomcat9-lib · amzn 2023 1:9.0.122-1.amzn2023.0.1 ALAS2023-2026-3166 Nov 7, 2026
tomcat9-servlet-4.0-api · amzn 2023 1:9.0.122-1.amzn2023.0.1 ALAS2023-2026-3166 Nov 7, 2026
tomcat9-webapps · amzn 2023 1:9.0.122-1.amzn2023.0.1 ALAS2023-2026-3166 Nov 7, 2026

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