CVE-2020-13943

Source
https://nvd.nist.gov/vuln/detail/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
2020-10-12T14:15:12Z
Modified
2025-08-09T19:01:27Z
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

Affected packages

Git / github.com/apache/tomcat

Affected ranges

Type
GIT
Repo
https://github.com/apache/tomcat
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
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