Detections
Analytics

CVE-2019-12387

medium

Description

In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an attacker to inject invalid characters such as CRLF.

References

https://www.oracle.com/security-alerts/cpuapr2020.html

https://usn.ubuntu.com/4308-2/

https://usn.ubuntu.com/4308-1/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2G5RPDQ4BNB336HL6WW5ZJ344MAWNN7N/

https://github.com/twisted/twisted/commit/6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00042.html

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00030.html

https://github.com/advisories/GHSA-6cc5-2vg4-cc7m

https://twistedmatrix.com/pipermail/twisted-python/2019-June/032352.html

https://labs.twistedmatrix.com/2019/06/twisted-1921-released.html

https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-0146

Details

Source: Mitre, NVD

Published: 2019-06-10

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Severity: Medium

CVSS v4

Base Score: 5.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Severity: Medium

EPSS

EPSS: 0.00656