CVE-2023-39916 CRITICAL

CVE-2023-39916: Possible path traversal when storing RRDP responses

Vendor Nlnet Labs
Product Routinator
Weakness CWE-35
Published September 13, 2023
Last update October 3, 2025

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity High

CVSS vector

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

What the vulnerability does

01Description

NLnet Labs’ Routinator 0.9.0 up to and including 0.12.1 as well as 0.14.0 up to and including 0.14.2 contains a possible path traversal vulnerability in the optional, off-by-default keep-rrdp-responses feature that allows users to store the content of responses received for RRDP requests. The location of these stored responses is constructed from the URL of the request. Due to insufficient sanitation of the URL, it is possible for an attacker to craft a URL that results in the response being stored outside of the directory specified for it.

Key dates

02Disclosure timeline

September 13, 2023 CVE published
October 3, 2025 Record updated