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CVE-2026-65905GHSA-9XV2-5V5Q-P794BIT-TOMCAT-2026-65905

Apache Tomcat: Limited replay attack possible with DIGEST authentication

Published
Last modified
published
Not listed in CISA KEV
Low (apache)
Fix
Fixed in 11.0.25, 10.1.58, 9.0.121
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total

Summary

Authentication Bypass by Capture-replay vulnerability in Apache Tomcat's DIGEST authenticator. If, before windowSize requests have been made, a client makes a DIGEST authenticated request with a nonceCount on the upper boundary of the replay window then that request is replayable once only while the associated nonceCount remains within the replay window.   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 7.0.30 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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: total

  3. Record last updated

Affected versions

  • Apache Software Foundation 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; From 8.5.0 · through 8.5.100; From 7.0.30 · through 7.0.109

  • org.apache.tomcat:tomcatMaven

    From 11.0.0-M1 · fixed in 11.0.25

  • org.apache.tomcat:tomcatMaven

    From 10.1.0-M1 · fixed in 10.1.58

  • org.apache.tomcat:tomcatMaven

    From 9.0.0.M1 · fixed in 9.0.121

  • org.apache.tomcat:tomcatMaven

    From 8.5.0 · through 8.5.100

  • org.apache.tomcat:tomcatMaven

    From 7.0.30 · through 7.0.109

  • org.apache.tomcat.embed:tomcat-embed-coreMaven

    From 11.0.0-M1 · fixed in 11.0.25

  • org.apache.tomcat.embed:tomcat-embed-coreMaven

    From 10.1.0-M1 · fixed in 10.1.58

  • org.apache.tomcat.embed:tomcat-embed-coreMaven

    From 9.0.0.M1 · fixed in 9.0.121

  • org.apache.tomcat.embed:tomcat-embed-coreMaven

    From 8.5.0 · through 8.5.100

  • org.apache.tomcat.embed:tomcat-embed-coreMaven

    From 7.0.30 · through 7.0.109

  • org.apache.tomcat:tomcat-catalinaMaven

    From 11.0.0-M1 · fixed in 11.0.25

  • org.apache.tomcat:tomcat-catalinaMaven

    From 10.1.0-M1 · fixed in 10.1.58

  • org.apache.tomcat:tomcat-catalinaMaven

    From 9.0.0.M1 · fixed in 9.0.121

  • org.apache.tomcat:tomcat-catalinaMaven

    From 8.5.0 · through 8.5.100

  • org.apache.tomcat:tomcat-catalinaMaven

    From 7.0.30 · through 7.0.109

References 1

lists.apache.org