GHSA-m7jv-hq7h-mq7c · Severity: high · Ecosystem: maven — Infinite Loop in Apache Tomcat
The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.
Conclusion & alert: CVE-2020-13935 is rated Moderate Risk (60.3/100): CVSS High severity, with high exploitation likelihood (EPSS 87.55%, 100th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 92.16% | 87.55% | -4.60% |
| 2 | 2026-05-20 | 91.75% | 92.16% | +0.41% |
| 3 | 2026-03-28 | — | 91.75% | — |
Full EPSS history (62 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
GHSA-m7jv-hq7h-mq7c · Severity: high · Ecosystem: maven — Infinite Loop in Apache Tomcat
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2020-13935 not yet assigned priority: Debian including 1 source packages (tomcat9), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-13935 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2020-13935 |
suse
|
high | CVE-2020-13935 severity important: SUSE including 397 source package names (5.0.0-beta1.2.122:tomcat-9.0.36-3.6.1, 5.0.0-beta1.2.122:tomcat-el-3_0-api-9.0.36-3.6.1, …), 751 product×package rows across 77 product lines (Container containers/apache-tomcat, Container suse/manager/5.0/x86_64/server, … (77 product lines)): Fixed 484, Known Affected 231, Known Not Affected 36. | https://www.suse.com/security/cve/CVE-2020-13935/ |
ubuntu
|
medium | CVE-2020-13935 medium priority: Ubuntu including 4 source packages (tomcat6, tomcat7, tomcat8, tomcat9), 68 status rows across 17 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 43, not-affected 14, needed 5, released 5, ignored 1. | https://ubuntu.com/security/CVE-2020-13935 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| apache | tomcat | >= 7.0.27, <= 7.0.104 | cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* |
| apache | tomcat | >= 8.5.0, <= 8.5.56 | cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* |
| apache | tomcat | >= 9.0.1, <= 9.0.36 | cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone10:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone11:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone12:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone13:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone14:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone15:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone16:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone17:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone18:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone19:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone2:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone20:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone21:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone22:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone23:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone24:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone25:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone26:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone27:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone3:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone4:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:* |
| apache | tomcat | 9.0.0 | cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:* |
| apache | tomcat | 10.0.0 | cpe:2.3:a:apache:tomcat:10.0.0:milestone1:*:*:*:*:*:* |
| apache | tomcat | 10.0.0 | cpe:2.3:a:apache:tomcat:10.0.0:milestone2:*:*:*:*:*:* |
| apache | tomcat | 10.0.0 | cpe:2.3:a:apache:tomcat:10.0.0:milestone3:*:*:*:*:*:* |
| apache | tomcat | 10.0.0 | cpe:2.3:a:apache:tomcat:10.0.0:milestone4:*:*:*:*:*:* |
| apache | tomcat | 10.0.0 | cpe:2.3:a:apache:tomcat:10.0.0:milestone5:*:*:*:*:*:* |
| apache | tomcat | 10.0.0 | cpe:2.3:a:apache:tomcat:10.0.0:milestone6:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| netapp | oncommand_system_manager | >= 3.0.0, <= 3.1.3 | cpe:2.3:a:netapp:oncommand_system_manager:*:*:*:*:*:*:*:* |
| opensuse | leap | 15.1 | cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
| opensuse | leap | 15.2 | cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* |
| canonical | ubuntu_linux | 20.04 | cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* |
| mcafee | epolicy_orchestrator | 5.9.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.9.0:*:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.9.1 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.9.1:*:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:-:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_1:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_2:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_3:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_4:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_5:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_6:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_7:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_8:*:*:*:*:*:* |
| oracle | agile_engineering_data_management | 6.2.1.0 | cpe:2.3:a:oracle:agile_engineering_data_management:6.2.1.0:*:*:*:*:*:*:* |
| oracle | agile_plm | 9.3.3 | cpe:2.3:a:oracle:agile_plm:9.3.3:*:*:*:*:*:*:* |
| oracle | agile_plm | 9.3.5 | cpe:2.3:a:oracle:agile_plm:9.3.5:*:*:*:*:*:*:* |
| oracle | agile_plm | 9.3.6 | cpe:2.3:a:oracle:agile_plm:9.3.6:*:*:*:*:*:*:* |
| oracle | blockchain_platform | < 21.1.2 | cpe:2.3:a:oracle:blockchain_platform:*:*:*:*:*:*:*:* |
| oracle | commerce_guided_search | 11.3.2 | cpe:2.3:a:oracle:commerce_guided_search:11.3.2:*:*:*:*:*:*:* |
| oracle | communications_cloud_native_core_policy | 1.14.0 | cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.14.0:*:*:*:*:*:*:* |
| oracle | communications_instant_messaging_server | 10.0.1.5.0 | cpe:2.3:a:oracle:communications_instant_messaging_server:10.0.1.5.0:*:*:*:*:*:*:* |
| oracle | fmw_platform | 12.2.1.3.0 | cpe:2.3:a:oracle:fmw_platform:12.2.1.3.0:*:*:*:*:*:*:* |
| oracle | fmw_platform | 12.2.1.4.0 | cpe:2.3:a:oracle:fmw_platform:12.2.1.4.0:*:*:*:*:*:*:* |
| oracle | instantis_enterprisetrack | 17.1 | cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:* |
| oracle | instantis_enterprisetrack | 17.2 | cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:* |
| oracle | instantis_enterprisetrack | 17.3 | cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:* |
| oracle | managed_file_transfer | 12.2.1.3.0 | cpe:2.3:a:oracle:managed_file_transfer:12.2.1.3.0:*:*:*:*:*:*:* |
| oracle | managed_file_transfer | 12.2.1.4.0 | cpe:2.3:a:oracle:managed_file_transfer:12.2.1.4.0:*:*:*:*:*:*:* |
| oracle | mysql_enterprise_monitor | <= 8.0.21 | cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:* |
| oracle | siebel_ui_framework | <= 20.12 | cpe:2.3:a:oracle:siebel_ui_framework:*:*:*:*:*:*:*:* |
| oracle | workload_manager | 12.2.0.1 | cpe:2.3:a:oracle:workload_manager:12.2.0.1:*:*:*:*:*:*:* |
| oracle | workload_manager | 18c | cpe:2.3:a:oracle:workload_manager:18c:*:*:*:*:*:*:* |
| oracle | workload_manager | 19c | cpe:2.3:a:oracle:workload_manager:19c:*:*:*:*:*:*:* |