CVE-2019-6802

6.1 mediumEPSS 3.8%

CRLF Injection in pypiserver 1.2.5 and below allows attackers to set arbitrary HTTP headers and possibly conduct XSS attacks via a %0d%0a in a URI.

Severity

6.1 medium

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 3.8% chance of exploitation in the next 30 days; higher than 90% of CVEs (scores of 2026-10-31)
CWEs: CWE-74, CWE-79
Published: 2019-01-25
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-mh24-7wvg-v88g	PyPI	pypiserver	<1.2.6	1.2.6
PYSEC-2019-113	PyPI	pypiserver	<1.2.6	1.2.6