{"id":"CVE-2026-72757","state":"PUBLISHED","title":"Routinator HTTP server becomes unavailable with many unclosed connections","description":"Routinator runs out of open connections on the HTTP server when many connections are opened but never closed, leaving the HTTP server unavailable. This condition can be triggered maliciously by an attacker by opening a large number of connections to the HTTP server.\n\nThis only affects users that make their HTTP or RTR server available to untrusted networks.","publishedAt":"2026-10-26T17:07:02.239Z","updatedAt":"2026-10-26T17:57:33.452Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","source":"NLnet Labs"},"assigner":"NLnet Labs","products":["NLnet Labs Routinator"],"affected":[{"vendor":"NLnet Labs","product":"Routinator","defaultStatus":"affected","versions":[{"version":"0.15.3","status":"unaffected","lessThan":"*","versionType":"semver"}]}],"references":["https://www.nlnetlabs.nl/downloads/routinator/CVE-2026-72756.txt"],"weaknesses":["CWE-755"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72757.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72757","state":"PUBLISHED","datePublished":"2026-10-26T17:07:02.239Z","dateUpdated":"2026-10-26T17:57:33.452Z","assignerShortName":"NLnet Labs","assignerOrgId":"206fc3a0-e175-490b-9eaa-a5738056c9f6","dateReserved":"2026-08-10T14:08:41.336Z"},"containers":{"cna":{"title":"Routinator HTTP server becomes unavailable with many unclosed connections","descriptions":[{"lang":"en","value":"Routinator runs out of open connections on the HTTP server when many connections are opened but never closed, leaving the HTTP server unavailable. This condition can be triggered maliciously by an attacker by opening a large number of connections to the HTTP server.\n\nThis only affects users that make their HTTP or RTR server available to untrusted networks."}],"affected":[{"vendor":"NLnet Labs","product":"Routinator","defaultStatus":"affected","versions":[{"version":"0.15.3","status":"unaffected","lessThan":"*","versionType":"semver"}]}],"references":[{"url":"https://www.nlnetlabs.nl/downloads/routinator/CVE-2026-72756.txt","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-755","lang":"en","description":"CWE-755 Improper Handling of Exceptional Conditions","type":"CWE"}]}],"providerMetadata":{"shortName":"NLnet Labs","orgId":"206fc3a0-e175-490b-9eaa-a5738056c9f6","dateUpdated":"2026-10-26T17:07:02.239Z"},"datePublic":"2026-10-26T00:00:00.000Z","solutions":[{"lang":"en","value":"This issue is fixed in 0.15.3 and all later versions."}],"timeline":[{"time":"2026-06-21T00:00:00.000Z","lang":"en","value":"Issue reported"},{"time":"2026-10-26T00:00:00.000Z","lang":"en","value":"Fixes released"}],"credits":[{"lang":"en","value":"Qifan Zhang, Palo Alto Networks","type":"finder"}],"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-72757","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-26T17:46:37.033179Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-26T17:57:33.452Z"}}]}}}