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Fencer Vulns
high 7.5

CVE-2023-28709 in the critical feed json

Apache Tomcat: Fix for CVE-2023-24998 is incomplete

published 2023-05-22 3 y ago modified 2026-09-08 2 mo ago also BIT-tomcat-2023-28709 , EUVD-2023-2040 , GHSA-cx6h-86xw-9x34

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
48.0%
EPSS 48.0% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

The fix for CVE-2023-24998 was incomplete for Apache Tomcat 11.0.0-M2 to 11.0.0-M4, 10.1.5 to 10.1.7, 9.0.71 to 9.0.73 and 8.5.85 to 8.5.87. If non-default HTTP connector settings were used such that the maxParameterCount could be reached using query string parameters and a request was submitted that supplied exactly maxParameterCount parameters in the query string, the limit for uploaded request parts could be bypassed with the potential for a denial of service to occur.

Patch / fix

  • maven org.apache.tomcat.embed:tomcat-embed-core 9.0.74, 10.1.8, 11.0.0-M5
  • maven org.apache.tomcat:tomcat-coyote 8.5.88
  • tomcat10 Debian 12 10.1.6-1+deb12u1
  • tomcat10 Debian 14, Debian 13 10.1.10-1

debian advisories DEBIAN-CVE-2023-28709

  • tomcat RHEL 8 1:9.0.62-27.el8_9
  • tomcat-lib RHEL 8 1:9.0.62-27.el8_9
  • tomcat-webapps RHEL 8 1:9.0.62-27.el8_9
  • tomcat-el-3.0-api RHEL 8 1:9.0.62-27.el8_9
  • tomcat-docs-webapp RHEL 8 1:9.0.62-27.el8_9
  • tomcat-jsp-2.3-api RHEL 8 1:9.0.62-27.el8_9
  • tomcat-admin-webapps RHEL 8 1:9.0.62-27.el8_9
  • tomcat-servlet-4.0-api RHEL 8 1:9.0.62-27.el8_9

red hat advisories RHSA-2023:7065RHSA-2023:6570RHSA-2023:4909

  • tomcat SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +11 more 9.0.75-150200.41.1
  • tomcat SLES 12 SP2-BCL 8.0.53-29.66.1
  • tomcat SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +4 more 9.0.36-3.105.1
  • tomcat SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 9.0.115-3.160.1
  • tomcat SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLE High Performance Computing 15 SP1-LTSS 9.0.36-150100.4.93.1

suse advisories SUSE-SU-2026:1058-1SUSE-SU-2023:2505-1SUSE-SU-2023:2504-1SUSE-SU-2023:2319-1SUSE-SU-2023:2318-1

  • tomcat openSUSE Tumbleweed 9.0.75-1.1
  • tomcat10 openSUSE Tumbleweed 10.1.14-1.1

opensuse advisories openSUSE-SU-2024:12953-1openSUSE-SU-2024:13441-1

  • tomcat AlmaLinux 8 1:9.0.62-27.el8_9
  • tomcat-lib AlmaLinux 8 1:9.0.62-27.el8_9
  • tomcat-webapps AlmaLinux 8 1:9.0.62-27.el8_9
  • tomcat-el-3.0-api AlmaLinux 8 1:9.0.62-27.el8_9
  • tomcat-docs-webapp AlmaLinux 8 1:9.0.62-27.el8_9
  • tomcat-jsp-2.3-api AlmaLinux 8 1:9.0.62-27.el8_9
  • tomcat-admin-webapps AlmaLinux 8 1:9.0.62-27.el8_9
  • tomcat-servlet-4.0-api AlmaLinux 8 1:9.0.62-27.el8_9

almalinux advisories ALSA-2023:7065ALSA-2023:6570

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-28709 updated cvss 7.5

tomcat: Fix for CVE-2023-24998 was incomplete

  • Red Hat Enterprise Linux 6 tomcat6, tomcat6-lib, tomcat6-log4j, tomcat6-javadoc, tomcat6-webapps, tomcat6-el-2.1-api, +4 more Red Hat Enterprise Linux 7 tomcat, tomcat-lib, tomcat-jsvc, tomcat-javadoc, tomcat-webapps, tomcat-el-2.2-api, +4 more
    affected: workaround, no fix planned “No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.”
  • Red Hat Enterprise Linux 8 pki-servlet-engine, pki-servlet-4.0-api
    affected: workaround, no fix available, no fix planned “No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.”
  • Red Hat Enterprise Linux 9 pki-servlet-engine, pki-servlet-4.0-api Red Hat JBoss Web Server 3 tomcat, tomcat7 tomcat7, tomcat8 tomcat8
    affected: workaround, no fix planned “No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.”
  • Red Hat JWS 5.7.4 release
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.” RHSA-2023:4910
  • Red Hat Enterprise Linux AppStream (v. 8) tomcat 9.0.62-27.el8_9, tomcat-lib 9.0.62-27.el8_9, tomcat-webapps 9.0.62-27.el8_9, tomcat-el-3.0-api 9.0.62-27.el8_9, tomcat-docs-webapp 9.0.62-27.el8_9, tomcat-jsp-2.3-api 9.0.62-27.el8_9, +2 more
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.” RHSA-2023:7065
  • Red Hat Enterprise Linux AppStream (v. 9) tomcat 9.0.62-37.el9_3, tomcat-lib 9.0.62-37.el9_3, tomcat-webapps 9.0.62-37.el9_3, tomcat-el-3.0-api 9.0.62-37.el9_3, tomcat-docs-webapp 9.0.62-37.el9_3, tomcat-jsp-2.3-api 9.0.62-37.el9_3, +2 more
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.” RHSA-2023:6570
  • Red Hat JBoss Web Server 5.7 for RHEL 7 Server jws5-tomcat 9.0.62-15.redhat_00013.1.el7jws, jws5-tomcat-lib 9.0.62-15.redhat_00013.1.el7jws, jws5-tomcat-javadoc 9.0.62-15.redhat_00013.1.el7jws, jws5-tomcat-selinux 9.0.62-15.redhat_00013.1.el7jws, jws5-tomcat-webapps 9.0.62-15.redhat_00013.1.el7jws, jws5-tomcat-java-jdk8 9.0.62-15.redhat_00013.1.el7jws, +6 more Red Hat JBoss Web Server 5.7 for RHEL 8 jws5-tomcat 9.0.62-15.redhat_00013.1.el8jws, jws5-tomcat-lib 9.0.62-15.redhat_00013.1.el8jws, jws5-tomcat-javadoc 9.0.62-15.redhat_00013.1.el8jws, jws5-tomcat-selinux 9.0.62-15.redhat_00013.1.el8jws, jws5-tomcat-webapps 9.0.62-15.redhat_00013.1.el8jws, jws5-tomcat-el-3.0-api 9.0.62-15.redhat_00013.1.el8jws, +4 more Red Hat JBoss Web Server 5.7 for RHEL 9 jws5-tomcat 9.0.62-15.redhat_00013.1.el9jws, jws5-tomcat-lib 9.0.62-15.redhat_00013.1.el9jws, jws5-tomcat-javadoc 9.0.62-15.redhat_00013.1.el9jws, jws5-tomcat-selinux 9.0.62-15.redhat_00013.1.el9jws, jws5-tomcat-webapps 9.0.62-15.redhat_00013.1.el9jws, jws5-tomcat-el-3.0-api 9.0.62-15.redhat_00013.1.el9jws, +4 more
    fixed: vendor fix “No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.” RHSA-2023:4909
  • Red Hat Enterprise Linux 8 pki-servlet-container Red Hat JBoss Web Server 5.7 for RHEL 7 Server jws5-tomcat-native 1.2.31-15.redhat_15.el7jws Red Hat JBoss Web Server 5.7 for RHEL 8 jws5-tomcat-native 1.2.31-15.redhat_15.el8jws Red Hat JBoss Web Server 5.7 for RHEL 9 jws5-tomcat-native 1.2.31-15.redhat_15.el9jws
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

48.03% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven org.apache.tomcat.embed:tomcat-embed-core
>=11.0.0-M2, <11.0.0-M5
>=10.1.5, <10.1.8
>=9.0.71, <9.0.74
11.0.0-M5
10.1.8
9.0.74
maven org.apache.tomcat:tomcat-coyote
>=8.5.85, <8.5.88
8.5.88
bitnami tomcat
>=8.5.85, <=8.5.87
>=9.0.71, <=9.0.73
>=10.1.5, <=10.1.7
 no fix listed

Affected products

  • Apache Software Foundation Apache Tomcat

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.