UpHeron
All vulnerabilities

Servers and applications

CVE-2019-18348

An issue was discovered in urllib2 in Python 2.x through 2.7.17 and urllib in Python 3.x through 3.8.0. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the host component of a URL) followed by an HTTP header. This is similar to the CVE-2019-9740 query string issue and the CVE-2019-9947…

Severity
Medium 6.1
Published
23 Oct 2019
Last changed
14 Oct 2026
Added to UpHeron
21 Oct 2026
Fixed in
3.5.10, 3.6.11, 3.7.8, 3.8.3
Sources
NVD

Affected software

SoftwareAffected versions
PythonServers and applications · cpe:a:python:python
  • From 2.0 up to 2.7.17
  • From 3.0 before 3.5.10
  • From 3.6.0 before 3.6.11
  • From 3.7.0 before 3.7.8
  • From 3.8.0 before 3.8.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-18348
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-18348