{"id":"CVE-2026-18924","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-18924","generatedAt":"2026-10-28T02:12:56.330Z","title":"A flaw in libcurl's handling of HTTP/2 Server Push streams, when the parent handle is set to share connections with other handles, can lead to use-after-free in the cleanup process.","description":"A flaw in libcurl's handling of HTTP/2 Server Push streams, when the parent\nhandle is set to share connections with other handles, can lead to\nuse-after-free in the cleanup process.","published":"2026-09-06T18:17:21.000Z","lastModified":"2026-09-15T07:16:27.000Z","status":"Modified","sourceIdentifier":"2499f714-1537-4658-8207-48ae4bb9eae9","cvss":{"version":"3.1","score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"},"cwe":["CWE-416"],"affected":["haxx/curl"],"epss":{"score":0.00584,"percentile":0.47653,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://curl.se/docs/CVE-2026-18924.html","tags":["Patch","Vendor Advisory"],"source":"2499f714-1537-4658-8207-48ae4bb9eae9"},{"url":"https://curl.se/docs/CVE-2026-18924.json","tags":["Vendor Advisory"],"source":"2499f714-1537-4658-8207-48ae4bb9eae9"},{"url":"https://hackerone.com/reports/3916059","tags":["Exploit","Mitigation","Third Party Advisory"],"source":"2499f714-1537-4658-8207-48ae4bb9eae9"},{"url":"https://hackerone.com/reports/3916059","tags":["Exploit","Mitigation","Third Party Advisory"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-18924","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}