CVE-2026-73180
published 2026-08-25CVE-2026-73180: Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticated HTTP session was changed after a WebSocket…
PriorityP343medium6.8CVSS 3.1
AVNACHPRLUINSUCHIHAN
EPSS
0.54%
43.5th percentile
Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticated HTTP session was changed after a WebSocket connection had been established under that authenticated HTTP session, the WebSokcet session would not be closed as required by the Jakarta WebSocket specification when the HTTP session ended.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120.
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 11.0.25, 10.1.58 or 9.0.121, which fix the issue.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache | tomcat | — | — |
| apache | tomcat | >= 10.1.0 < 10.1.58 | 10.1.58 |
| apache | tomcat | >= 11.0.0 < 11.0.25 | 11.0.25 |
| apache | tomcat | 7.0.43 – 7.0.109 | — |
| apache | tomcat | >= 8.5.0 < 9.0.121 | 9.0.121 |
| apache_software_foundation | apache_tomcat | 10.1.0-M1 – 10.1.57 | — |
| apache_software_foundation | apache_tomcat | 11.0.0-M1 – 11.0.24 | — |
| apache_software_foundation | apache_tomcat | 7.0.43 – 7.0.109 | — |
| apache_software_foundation | apache_tomcat | 8.5.0 – 8.5.100 | — |
| apache_software_foundation | apache_tomcat | 9.0.0.M1 – 9.0.120 | — |
| debian | tomcat10 | — | — |
| debian | tomcat11 | — | — |
| debian | tomcat9 | — | — |
| pki-deps_10.6 | pki-servlet-engine | — | — |
CVSS provenance
nvdv3.16.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
vendor_redhat6.8MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticated HTTP session was changed after a WebSocket connection had been established under that a
ghsa_unreviewed·2026-08-26
CVE-2026-73180 CWE-613 Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticated HTTP session was changed after a WebSocket connection had been established under that a
Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticated HTTP session was changed after a WebSocket connection had been established under that authenticated HTTP session, the WebSokcet session would not be closed as required by the Jakarta WebSocket specification when the HTTP session ended.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120.
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 11.0.25, 10.1.58 or 9.0.121, which fix the issue.
Red Hat
tomcat: Apache Tomcat: Authenticated WebSocket session persists after HTTP session termination
vendor_redhat·2026-08-25·CVSS 6.8
CVE-2026-73180 [MEDIUM] CWE-613 tomcat: Apache Tomcat: Authenticated WebSocket session persists after HTTP session termination
tomcat: Apache Tomcat: Authenticated WebSocket session persists after HTTP session termination
Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticated HTTP session was changed after a WebSocket connection had been established under that authenticated HTTP session, the WebSokcet session would not be closed as required by the Jakarta WebSocket specification when the HTTP session ended.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120.
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 u
No detection rules found.
No public exploits indexed.
2026-08-25
Published