Radicale before 1.1.2 and 2.x before 2.0.0rc2 is prone to timing oracles and simple brute-force attacks when using the htpasswd authentication method.
https://github.com/Kozea/Radicale/commit/190b1dd795f0c552a4992445a231da760211183b
https://github.com/Kozea/Radicale/commit/059ba8dec1f22ccbeab837e288b3833a099cee2d
https://github.com/Kozea/Radicale/blob/1.1.2/NEWS.rst
https://lists.debian.org/debian-lts-announce/2020/04/msg00019.html
https://bugs.debian.org/861514
Source: Mitre, NVD
Published: 2017-04-30
Updated: 2025-04-20
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 8.1
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.00726