High severity · published Oct 26, 2026
CVE-2026-72756
Routinator exits on malformed rsync URIs
New
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
Routinator exits when an rsync URI for a file obtained over RRDP contains a path that cannot be stored on disk, such as too long file names, and folder names that overlap with existing file names.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RO
Routinator · NLnet Labs
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72756
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-72756
www.nlnetlabs.nl
https://www.nlnetlabs.nl/downloads/routinator/CVE-2026-72756.txt
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CVE-2026-49232
Routinator exits when accepting an incoming HTTP or RTR connection fails
8.2
CVE-2026-72753
Routinator incorrectly handles delta updates
7.5
CVE-2026-72758
Routinator may exit on malformed ranges
7.5
CVE-2026-72754
Routinator exits when parsing an incorrect or very large CRL file
7.5
CVE-2026-49235
Routinator crashes on specifically crafted RRDP XML files