CVE-2016-9964

high

Description

redirect() in bottle.py in bottle 0.12.10 doesn't filter a "\r\n" sequence, which leads to a CRLF attack, as demonstrated by a redirect("233\r\nSet-Cookie: name=salt") call.

References

Advisories
More

https://github.com/bottlepy/bottle/issues/913

https://github.com/bottlepy/bottle/commit/6d7e13da0f998820800ecb3fe9ccee4189aefb54

http://www.securityfocus.com/bid/94961

http://www.debian.org/security/2016/dsa-3743

https://github.com/advisories/GHSA-j6f7-hghw-g437

https://euvd.enisa.europa.eu/vulnerability/EUVD-2016-0002

Details

Source: Mitre, NVD

Published: 2016-12-16

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: 6.5

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

Severity: Medium

CVSS v4

Base Score: 7.1

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

Severity: High

EPSS

EPSS: 0.01761

Detections

Analytics