CVE-2026-73180

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreHIGH confidence

Score 6.8 from GitHub Security Advisory published 2026-08-26. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 5 sources updated this week
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
6.8
EG Score
6.8(high)
EG Risk
31(Track)
EG Risk 31/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity68% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 27, 2026

Advisory Details (1)

Auto-updated Aug 26, 2026
No patch confirmed yet.
generic
https://lists.apache.org/thread/3j15vztszpyqss253mjq5v1kp7s6hooq

Vendor Advisories for CVE-2026-73180(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 17× in last 7d / 17× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-27 14:25 UTCEPSS rescore
  2. 2026-08-27 12:51 UTCEG score recompute
  3. 2026-08-27 12:51 UTCGHSA enrichment
  4. 2026-08-26 19:22 UTCGHSA enrichment
  5. 2026-08-26 18:41 UTCEG score recompute▲ 6.80
  6. 2026-08-26 18:41 UTCGHSA enrichment
  7. 2026-08-26 18:41 UTCMITRE cvelistV5CVSS v3 → 6.8 · severity → MEDIUM
  8. 2026-08-26 16:58 UTCGHSA enrichment
  9. 2026-08-26 15:56 UTCEG score recompute
  10. 2026-08-26 15:56 UTCGHSA enrichment
  11. 2026-08-26 15:43 UTCNVD update
  12. 2026-08-26 14:47 UTCEPSS rescore
  13. 2026-08-26 02:55 UTCGHSA enrichment
  14. 2026-08-26 02:54 UTCMITRE cvelistV5
  15. 2026-08-25 22:28 UTCNVD update
  16. 2026-08-25 22:10 UTCEG score recompute
  17. 2026-08-25 22:09 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73180?
CVE-2026-73180 is a medium vulnerability published on August 25, 2026. 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…
When was CVE-2026-73180 disclosed?
CVE-2026-73180 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73180 actively exploited?
CVE-2026-73180 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 65.8% of all scored CVEs.
What is the CVSS score of CVE-2026-73180?
CVE-2026-73180 has a CVSS v3.1 base score of 6.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-73180?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73180, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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