CVE-2020-13943
- Source
- https://cve.org/CVERecord?id=CVE-2020-13943
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13943.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2020-13943
- Aliases
- Downstream
- Related
- Published
- 2020-10-12T14:15:12.183Z
- Modified
- 2026-02-13T02:02:08.201043Z
- 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.
- 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
- https://www.oracle.com/security-alerts/cpuApr2021.html
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00002.html