{"id":"CVE-2025-5399","state":"PUBLISHED","title":"WebSocket endless loop","description":"Due to a mistake in libcurl's WebSocket code, a malicious server can send a\nparticularly crafted packet which makes libcurl get trapped in an endless\nbusy-loop.\n\nThere is no other way for the application to escape or exit this loop other\nthan killing the thread/process.\n\nThis might be used to DoS libcurl-using application.","publishedAt":"2025-06-07T07:49:09.370Z","updatedAt":"2025-06-09T13:20:29.843Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"curl","products":["curl curl"],"affected":[{"vendor":"curl","product":"curl","defaultStatus":"unaffected","versions":[{"version":"8.14.0","status":"affected","lessThanOrEqual":"8.14.0","versionType":"semver"},{"version":"8.13.0","status":"affected","lessThanOrEqual":"8.13.0","versionType":"semver"}]}],"references":["https://curl.se/docs/CVE-2025-5399.json","https://curl.se/docs/CVE-2025-5399.html","https://hackerone.com/reports/3168039","http://www.openwall.com/lists/oss-security/2025/06/04/2"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:39.787Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/5xxx/CVE-2025-5399.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-5399","state":"PUBLISHED","datePublished":"2025-06-07T07:49:09.370Z","dateUpdated":"2025-06-09T13:20:29.843Z","assignerShortName":"curl","assignerOrgId":"2499f714-1537-4658-8207-48ae4bb9eae9","dateReserved":"2025-05-31T15:02:27.226Z"},"containers":{"cna":{"title":"WebSocket endless loop","descriptions":[{"lang":"en","value":"Due to a mistake in libcurl's WebSocket code, a malicious server can send a\nparticularly crafted packet which makes libcurl get trapped in an endless\nbusy-loop.\n\nThere is no other way for the application to escape or exit this loop other\nthan killing the thread/process.\n\nThis might be used to DoS libcurl-using application."}],"affected":[{"vendor":"curl","product":"curl","defaultStatus":"unaffected","versions":[{"version":"8.14.0","status":"affected","lessThanOrEqual":"8.14.0","versionType":"semver"},{"version":"8.13.0","status":"affected","lessThanOrEqual":"8.13.0","versionType":"semver"}]}],"references":[{"url":"https://curl.se/docs/CVE-2025-5399.json","name":"json"},{"url":"https://curl.se/docs/CVE-2025-5399.html","name":"www"},{"url":"https://hackerone.com/reports/3168039","name":"issue"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')"}]}],"providerMetadata":{"shortName":"curl","orgId":"2499f714-1537-4658-8207-48ae4bb9eae9","dateUpdated":"2025-06-07T07:49:09.370Z"},"credits":[{"lang":"en","value":"z2_ on hackerone","type":"finder"},{"lang":"en","value":"z2_ on hackerone","type":"remediation developer"}]},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2025/06/04/2"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-06-07T08:05:07.254Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-06-09T13:20:18.342977Z","id":"CVE-2025-5399","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-06-09T13:20:29.843Z"}}]}}}