Resource exhaustion in Routinator - CVE-2026-72754
Published: October 27, 2026
Vulnerability identifier: #VU157708
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-72754
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper handling of oversized or incorrectly encoded certificate revocation lists (CRLs) in Routinator's CRL parser when parsing CRL files. A remote attacker can supply a CRL containing many entries or an incorrect encoding to cause Routinator to hang, exhaust memory, or exit.
Affected software
Routinator
How to mitigate CVE-2026-72754
Install security update from vendor's website.
Routinator - update to 0.15.3