CVE-2026-49232 | BDVDB-2026-338663 Detail

NLnet LabsRoutinator

Description#

Routinator exits on any error when accepting incoming HTTP or RTR connections, including ones it can recover from such as running out of file descriptors. This condition can be triggered maliciously by an attacker by opening a large number of connections to the HTTP or RTR server. This only affects users that make their HTTP or RTR server available to untrusted networks.

Impact#

Per CVSS v4.0: confidentiality impact none, integrity impact none, availability impact high. Attack vector: network.

Weaknesses#

CWE-755 Improper Handling of Exceptional Conditions

References#

https://www.nlnetlabs.nl/downloads/routinator/CVE-2026-49232.txt

Exploit#

No public exploit known

History#

Version 12026-06-08Record published in the CVE List.

Published

Published: 2026-06-08
Last modified: 2026-06-08

Vendor information

Vendor: NLnet Labs
Product: Routinator

All NLnet Labs vulnerabilities

Score

8.7 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 27.9.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Improper Error Handling

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
Not stated
Fixed
0.15.2

Scoring System

CVSS v4.0

8.7 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	None
Privileges Required	None
User Interaction	None
Vulnerable System Confidentiality	None
Vulnerable System Integrity	None
Vulnerable System Availability	High
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	Low

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).