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CVE-2026-73180— Apache Tomcat: Authenticated WebSocket session survives end of HTTP session

Quick assessment

Affected
Apache Software Foundation Apache Tomcat
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Tomcat 中存在“会话过期机制不足”漏洞。该漏洞意味着：如果在基于某个已认证 HTTP 会话建立的 WebSocket 连接之后，该已认证 HTTP 会话的会话 ID 被更改，当该 HTTP 会话结束时，WebSocket 会话不会按照 Jakarta WebSocket 规范要求被关闭。 此漏洞影响以下 Apache Tomcat 版本： 11.0.0-M1 至 11.0.24 10.1.0-M1 至 10.1.57 9.0.0-M1 至 9.0.120 在创建 CVE 时，以下版本已终止支持（

AI Predicted 4.9 Difficulty: Moderate EPSS 0.28% · P19

Affected Version Matrix 6

VendorProduct Version RangeStatus
Apache Software Foundation Apache Tomcat 11.0.0-M1≤ 11.0.24 affected
10.1.0-M1≤ 10.1.57 affected
9.0.0.M1≤ 9.0.120 affected
8.5.0≤ 8.5.100 affected
7.0.43≤ 7.0.109 affected
< 7.0.43 unaffected
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I. Basic Information for CVE-2026-73180

Vulnerability Information
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Vulnerability Title
Apache Tomcat: Authenticated WebSocket session survives end of HTTP session
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的会话过期机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Tomcat 11.0.0-M1 ~ 11.0.24 -

II. Public POCs for CVE-2026-73180

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III. Intelligence Information for CVE-2026-73180

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Mailing List Discussions for CVE-2026-73180 (1)

Same Patch Batch · Apache Software Foundation · 2026-08-25 · 14 CVEs total

CVE-2026-49050 Apache DolphinScheduler: General user can mint admin access tokens via /access-tokens
CVE-2026-53561 Apache Hive: Unauthenticated authentication bypass in HiveServer2 HTTP SAML bearer-token v
CVE-2026-55976 Apache Hive: SSRF vulnerability in Hive Avro Serde due to Insufficient input validation on
CVE-2026-49845 Apache Hive: SQL Injection vulnerability in HiveMetaStore partition-name direct-SQL paths
CVE-2026-65182 Apache Tomcat: Bypass longest prefix security constraint
CVE-2026-65183 Apache Tomcat: TOCTOU when setting specific permissions for Unix Domain Sockets
CVE-2026-65637 Apache Tomcat: HTTP/2 no-authority bypass of strict SNI validation - CVE-2026-32990 fix in
CVE-2026-65905 Apache Tomcat: Limited replay attack possible with DIGEST authentication
CVE-2026-65927 Apache Tomcat: RewriteValve [N] restarts at the second rule and may bypass access control
CVE-2026-66422 Apache Tomcat: Servlet role references can bypass declarative role constraints
CVE-2026-68525 Apache Tomcat: Redirect after FORM auth may bypass method specific constraints
CVE-2026-68569 Apache Tomcat: Principal lookup can fail open in some cases
CVE-2026-68763 Apache Tomcat: DoS via allocation leak in HTTP/2 backlog tracking when a stream is reset

IV. Related Vulnerabilities

Same product: Apache Tomcat
Same vendor: Apache Software Foundation
Same weakness: CWE-613

V. Comments for CVE-2026-73180

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