High severity7.5NVD Advisory· Published Jun 8, 2026· Updated Jun 12, 2026

CVE-2026-49235

Description

When Routinator encounters a file via RRDP using a specifically crafted Document Type Definition, Routinator crashes.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
routinatorcrates.io	< 0.15.2	0.15.2

Affected products

Nlnetlabs/Routinatorinferred3 versions
(expand)+ 2 more
- (no CPE)
- cpe:2.3:a:nlnetlabs:routinator:*:*:*:*:*:*:*:*range: <0.15.2
- (no CPE)

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-5qf9-cf9c-hjc6ghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2026-49235ghsaADVISORY
www.nlnetlabs.nl/downloads/routinator/CVE-2026-49235.txtnvdVendor AdvisoryWEB
github.com/NLnetLabs/routinator/releases/tag/v0.15.2ghsaWEB

News mentions

Nlnetlabs Routinator: Three High-Severity Vulnerabilities Disclosed Together
Vypr Intelligence · Jun 8, 2026

Severity

HighCVSS v3.1

7.5/ 10

CVSS v48.7

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack vector: Network
Complexity: Low
Privileges: None
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Vector

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

Affected

Source repo: github.com/NLnetLabs/routinator

EPSS

Probability of exploitation in the next 30 days.

0.37%

VYPR risk score

Composite of severity, exploitation, and reach.

0.42medium

cvss	0.488
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000

Weaknesses

CWE-400
Uncontrolled Resource Consumption
CWE-755
Improper Handling of Exceptional Conditions
CWE-776
Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

CVE ID

CVE-2026-49235