CVE-2026-79677

Summary

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.

Affected Software

VendorProductVersion RangeStatus
Apache Software FoundationApache Tomcat11.0.0-M1 <= 11.0.25affected
Apache Software FoundationApache Tomcat10.1.0-M1 <= 10.1.59affected
Apache Software FoundationApache Tomcat9.0.0.M1 <= 9.0.121affected
Apache Software FoundationApache Tomcat8.5.0 <= 8.5.100affected
Apache Software FoundationApache Tomcat7.0.43 <= 7.0.109affected
Apache Software FoundationApache Tomcat0 < 7.0.43unaffected

Weaknesses

  • CWE-772: CWE-772 Missing release of resource after effective lifetime
  • CWE-1025: CWE-1025 Comparison using wrong factors

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

CVE Program Container

Additional References

References