CVE-2016-9964: Bottlepy Bottle
Medium severity, CVSS 6.5. EPSS: 1.8% chance of exploitation in the next 30 days.
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.
Affected products
Published 2016-12-16. Last modified 2026-06-17.