CVE-2020-13935
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.
- CVSS 3.1
- 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- 87% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-25)
- CWE
- CWE-835
- Published
- Modified
- Record from
- the NVD, synced
Affected
- apache:tomcat
- canonical:ubuntu_linux
- debian:debian_linux
- mcafee:epolicy_orchestrator
- netapp:oncommand_system_manager
- opensuse:leap
- oracle:agile_engineering_data_management
- oracle:agile_product_lifecycle_management
- oracle:blockchain_platform
- oracle:commerce_guided_search
- oracle:communications_cloud_native_core_policy
- oracle:communications_instant_messaging_server
- oracle:fmw_platform
- oracle:instantis_enterprisetrack
- oracle:managed_file_transfer
- oracle:mysql_enterprise_monitor
- oracle:siebel_ui_framework
- oracle:workload_manager
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-m7jv-hq7h-mq7c | Maven | org.apache.tomcat:tomcat | >=10.0.0-M1 <10.0.0-M7 | 10.0.0-M7 |
| GHSA-m7jv-hq7h-mq7c | Maven | org.apache.tomcat:tomcat | >=9.0.0.M1 <9.0.37 | 9.0.37 |
| GHSA-m7jv-hq7h-mq7c | Maven | org.apache.tomcat:tomcat | >=8.5.0 <8.5.57 | 8.5.57 |
| GHSA-m7jv-hq7h-mq7c | Maven | org.apache.tomcat:tomcat | >=7.0.27 <7.0.105 | 7.0.105 |
| GHSA-m7jv-hq7h-mq7c | Maven | org.apache.tomcat.embed:tomcat-embed-websocket | >=7.0.27 <7.0.105 | 7.0.105 |
| GHSA-m7jv-hq7h-mq7c | Maven | org.apache.tomcat.embed:tomcat-embed-websocket | >=8.5.0 <8.5.57 | 8.5.57 |
| GHSA-m7jv-hq7h-mq7c | Maven | org.apache.tomcat.embed:tomcat-embed-websocket | >=9.0.0.M1 <9.0.37 | 9.0.37 |
| GHSA-m7jv-hq7h-mq7c | Maven | org.apache.tomcat.embed:tomcat-embed-websocket | >=10.0.0-M1 <10.0.0-M7 | 10.0.0-M7 |
| GHSA-m7jv-hq7h-mq7c | Maven | org.apache.tomcat:tomcat-websocket | >=10.0.0-M1 <10.0.0-M7 | 10.0.0-M7 |
| GHSA-m7jv-hq7h-mq7c | Maven | org.apache.tomcat:tomcat-websocket | >=9.0.0.M1 <9.0.37 | 9.0.37 |
| GHSA-m7jv-hq7h-mq7c | Maven | org.apache.tomcat:tomcat-websocket | >=8.5.0 <8.5.57 | 8.5.57 |
| GHSA-m7jv-hq7h-mq7c | Maven | org.apache.tomcat:tomcat-websocket | >=7.0.27 <7.0.105 | 7.0.105 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00084.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00088.html
- https://kc.mcafee.com/corporate/index?page=content&id=SB10332
- https://lists.apache.org/thread.html/r4e5d3c09f4dd2923191e972408b40fb8b42dbff0bc7904d44b651e50%40%3Cusers.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/rd48c72bd3255bda87564d4da3791517c074d94f8a701f93b85752651%40%3Cannounce.tomcat.apache.org%3E