CVE-2020-13943
- Source
- https://cve.org/CVERecord?id=CVE-2020-13943
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-13943.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2020-13943
- Aliases
- Downstream
- Related
- Published
- 2020-10-12T14:15:12.183Z
- Modified
- 2026-04-16T00:02:35.188622874Z
- Severity
-
- 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
If an HTTP/2 client connecting to Apache Tomcat 10.0.0-M1 to 10.0.0-M7, 9.0.0.M1 to 9.0.37 or 8.5.0 to 8.5.57 exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources.
- Database specific
{ "unresolved_ranges": [ { "cpe": "cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*", "source": "CPE_FIELD", "extracted_events": [ { "last_affected": "17.1" } ] }, { "cpe": "cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*", "source": "CPE_FIELD", "extracted_events": [ { "last_affected": "17.2" } ] }, { "cpe": "cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*", "source": "CPE_FIELD", "extracted_events": [ { "last_affected": "17.3" } ] } ] }- References
-
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00002.html
- https://lists.apache.org/thread.html/r4a390027eb27e4550142fac6c8317cc684b157ae314d31514747f307%40%3Cannounce.tomcat.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2020/10/msg00019.html
- https://security.netapp.com/advisory/ntap-20201016-0007/
- https://www.debian.org/security/2021/dsa-4835
- https://www.oracle.com/security-alerts/cpuApr2021.html
Affected packages
Git / github.com/apache/tomcat
Affected ranges
- Type
- GIT
- Repo
- https://github.com/apache/tomcat
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affectedLast affected
- Database specific
{ "cpe": [ "cpe:2.3:a:apache:tomcat:8.5.0:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.1:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.2:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.3:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.4:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.5:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.6:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.7:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.8:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.9:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.10:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.11:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.12:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.13:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.14:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.15:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.16:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.17:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.18:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.19:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.20:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.21:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.22:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.23:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.24:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.25:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.26:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.27:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.28:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.29:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.30:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.31:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.32:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.33:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.34:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.35:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.36:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.37:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.38:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.39:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.40:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.41:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.42:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.43:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.44:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.45:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.46:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.47:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.48:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.49:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.50:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.51:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.52:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.53:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.54:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.55:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.56:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:8.5.57:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone10:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone11:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone12:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone13:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone14:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone15:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone16:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone17:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone18:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone19:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone20:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone21:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone22:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone23:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone24:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone25:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone26:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone27:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.1:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.2:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.3:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.4:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.5:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.6:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.7:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.8:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.9:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.10:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.11:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.12:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.13:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.14:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.15:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.16:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.17:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.18:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.19:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.20:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.21:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.22:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.23:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.24:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.25:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.26:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.27:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.28:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.29:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.30:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.31:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.32:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.33:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.34:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.35:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.36:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:9.0.37:*:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:10.0.0:milestone1:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:10.0.0:milestone2:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:10.0.0:milestone3:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:10.0.0:milestone4:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:10.0.0:milestone5:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:10.0.0:milestone6:*:*:*:*:*:*", "cpe:2.3:a:apache:tomcat:10.0.0:milestone7:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "cpe:2.3:a:oracle:sd-wan_edge:9.0:*:*:*:*:*:*:*" ], "source": "CPE_FIELD", "extracted_events": [ { "introduced": "0" }, { "last_affected": "8.5.0" }, { "last_affected": "8.5.1" }, { "last_affected": "8.5.2" }, { "last_affected": "8.5.3" }, { "last_affected": "8.5.4" }, { "last_affected": "8.5.5" }, { "last_affected": "8.5.6" }, { "last_affected": "8.5.7" }, { "last_affected": "8.5.8" }, { "last_affected": "8.5.9" }, { "last_affected": "8.5.10" }, { "last_affected": "8.5.11" }, { "last_affected": "8.5.12" }, { "last_affected": "8.5.13" }, { "last_affected": "8.5.14" }, { "last_affected": "8.5.15" }, { "last_affected": "8.5.16" }, { "last_affected": "8.5.17" }, { "last_affected": "8.5.18" }, { "last_affected": "8.5.19" }, { "last_affected": "8.5.20" }, { "last_affected": "8.5.21" }, { "last_affected": "8.5.22" }, { "last_affected": "8.5.23" }, { "last_affected": "8.5.24" }, { "last_affected": "8.5.25" }, { "last_affected": "8.5.26" }, { "last_affected": "8.5.27" }, { "last_affected": "8.5.28" }, { "last_affected": "8.5.29" }, { "last_affected": "8.5.30" }, { "last_affected": "8.5.31" }, { "last_affected": "8.5.32" }, { "last_affected": "8.5.33" }, { "last_affected": "8.5.34" }, { "last_affected": "8.5.35" }, { "last_affected": "8.5.36" }, { "last_affected": "8.5.37" }, { "last_affected": "8.5.38" }, { "last_affected": "8.5.39" }, { "last_affected": "8.5.40" }, { "last_affected": "8.5.41" }, { "last_affected": "8.5.42" }, { "last_affected": "8.5.43" }, { "last_affected": "8.5.44" }, { "last_affected": "8.5.45" }, { "last_affected": "8.5.46" }, { "last_affected": "8.5.47" }, { "last_affected": "8.5.48" }, { "last_affected": "8.5.49" }, { "last_affected": "8.5.50" }, { "last_affected": "8.5.51" }, { "last_affected": "8.5.52" }, { "last_affected": "8.5.53" }, { "last_affected": "8.5.54" }, { "last_affected": "8.5.55" }, { "last_affected": "8.5.56" }, { "last_affected": "8.5.57" }, { "last_affected": "9.0.0-milestone10" }, { "last_affected": "9.0.0-milestone11" }, { "last_affected": "9.0.0-milestone12" }, { "last_affected": "9.0.0-milestone13" }, { "last_affected": "9.0.0-milestone14" }, { "last_affected": "9.0.0-milestone15" }, { "last_affected": "9.0.0-milestone16" }, { "last_affected": "9.0.0-milestone17" }, { "last_affected": "9.0.0-milestone18" }, { "last_affected": "9.0.0-milestone19" }, { "last_affected": "9.0.0-milestone20" }, { "last_affected": "9.0.0-milestone21" }, { "last_affected": "9.0.0-milestone22" }, { "last_affected": "9.0.0-milestone23" }, { "last_affected": "9.0.0-milestone24" }, { "last_affected": "9.0.0-milestone25" }, { "last_affected": "9.0.0-milestone26" }, { "last_affected": "9.0.0-milestone27" }, { "last_affected": "9.0.0-milestone5" }, { "last_affected": "9.0.0-milestone6" }, { "last_affected": "9.0.0-milestone7" }, { "last_affected": "9.0.0-milestone8" }, { "last_affected": "9.0.0-milestone9" }, { "last_affected": "9.0.1" }, { "last_affected": "9.0.2" }, { "last_affected": "9.0.3" }, { "last_affected": "9.0.4" }, { "last_affected": "9.0.5" }, { "last_affected": "9.0.6" }, { "last_affected": "9.0.7" }, { "last_affected": "9.0.8" }, { "last_affected": "9.0.9" }, { "last_affected": "9.0.10" }, { "last_affected": "9.0.11" }, { "last_affected": "9.0.12" }, { "last_affected": "9.0.13" }, { "last_affected": "9.0.14" }, { "last_affected": "9.0.15" }, { "last_affected": "9.0.16" }, { "last_affected": "9.0.17" }, { "last_affected": "9.0.18" }, { "last_affected": "9.0.19" }, { "last_affected": "9.0.20" }, { "last_affected": "9.0.21" }, { "last_affected": "9.0.22" }, { "last_affected": "9.0.23" }, { "last_affected": "9.0.24" }, { "last_affected": "9.0.25" }, { "last_affected": "9.0.26" }, { "last_affected": "9.0.27" }, { "last_affected": "9.0.28" }, { "last_affected": "9.0.29" }, { "last_affected": "9.0.30" }, { "last_affected": "9.0.31" }, { "last_affected": "9.0.32" }, { "last_affected": "9.0.33" }, { "last_affected": "9.0.34" }, { "last_affected": "9.0.35" }, { "last_affected": "9.0.36" }, { "last_affected": "9.0.37" }, { "last_affected": "10.0.0-milestone1" }, { "last_affected": "10.0.0-milestone2" }, { "last_affected": "10.0.0-milestone3" }, { "last_affected": "10.0.0-milestone4" }, { "last_affected": "10.0.0-milestone5" }, { "last_affected": "10.0.0-milestone6" }, { "last_affected": "10.0.0-milestone7" }, { "last_affected": "9.0" }, { "last_affected": "10.0" } ] }
Affected versions
10.*
10.0.0
10.0.0-M1
10.0.0-M2
10.0.0-M3
10.0.0-M4
10.0.0-M5
10.0.0-M6
10.0.0-M7
8.*
8.5.0
8.5.1
8.5.10
8.5.11
8.5.12
8.5.13
8.5.14
8.5.15
8.5.16
8.5.17
8.5.18
8.5.19
8.5.2
8.5.20
8.5.21
8.5.22
8.5.23
8.5.24
8.5.25
8.5.26
8.5.27
8.5.28
8.5.29
8.5.3
8.5.30
8.5.31
8.5.32
8.5.33
8.5.34
8.5.35
8.5.36
8.5.37
8.5.38
8.5.39
8.5.4
8.5.40
8.5.41
8.5.42
8.5.43
8.5.44
8.5.45
8.5.46
8.5.47
8.5.48
8.5.49
8.5.5
8.5.50
8.5.51
8.5.52
8.5.53
8.5.54
8.5.55
8.5.56
8.5.57
8.5.6
8.5.7
8.5.8
8.5.9
9.*
9.0.0
9.0.0-M10
9.0.0-M11
9.0.0-M12
9.0.0-M13
9.0.0-M14
9.0.0-M15
9.0.0-M16
9.0.0-M17
9.0.0-M18
9.0.0-M19
9.0.0-M20
9.0.0-M21
9.0.0-M22
9.0.0-M23
9.0.0-M24
9.0.0-M25
9.0.0-M26
9.0.0-M27
9.0.0-M5
9.0.0-M6
9.0.0-M7
9.0.0-M8
9.0.0-M9
9.0.1
9.0.10
9.0.11
9.0.12
9.0.13
9.0.14
9.0.15
9.0.16
9.0.17
9.0.18
9.0.19
9.0.2
9.0.20
9.0.21
9.0.22
9.0.23
9.0.24
9.0.25
9.0.26
9.0.27
9.0.28
9.0.29
9.0.3
9.0.30
9.0.31
9.0.32
9.0.33
9.0.34
9.0.35
9.0.36
9.0.37
9.0.4
9.0.5
9.0.6
9.0.7
9.0.8
9.0.9