All vulnerabilities

Servers and applications

CVE-2019-20637

An issue was discovered in Varnish Cache before 6.0.5 LTS, 6.1.x and 6.2.x before 6.2.2, and 6.3.x before 6.3.1. It does not clear a pointer between the handling of one client request and the next request within the same connection. This sometimes causes information to be disclosed from the connection workspace, such as data structures associated with previous requests within this connection or…

Severity
High 7.5
Published
8 Apr 2020
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
6.0.5
Sources
NVD

Affected software

SoftwareAffected versions
Varnish CacheServers and applications · cpe:a:varnish-software:varnish_cache
  • From 6.0.0 before 6.0.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-20637
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-20637