{"id":"CVE-2025-10148","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-10148","generatedAt":"2026-10-28T02:10:07.944Z","title":"A predictable mask pattern allows for a malicious server to induce traffic between the two communicating parties that could be interpreted by an involved proxy (configured or transparent) as genuine, real, HTTP traffic with content and thereby poison…","description":"curl's WebSocket code did not update the 32-bit mask pattern for each new\noutgoing frame as the specification says. Instead it used a fixed mask that\npersisted and was used throughout the entire connection.\n\nA predictable mask pattern allows for a malicious server to induce traffic\nbetween the two communicating parties that could be interpreted by an involved\nproxy (configured or transparent) as genuine, real, HTTP traffic with content\nand thereby poison its cache. That cached poisoned content could then be\nserved to all users of that proxy.","published":"2025-09-12T06:15:40.000Z","lastModified":"2026-10-19T17:10:00.000Z","status":"Modified","sourceIdentifier":"2499f714-1537-4658-8207-48ae4bb9eae9","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-340"],"affected":["haxx/curl"],"epss":{"score":0.00524,"percentile":0.44184,"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":"low","text":"Lower severity and a low EPSS score (0.52%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://curl.se/docs/CVE-2025-10148.html","tags":["Patch","Vendor Advisory"],"source":"2499f714-1537-4658-8207-48ae4bb9eae9"},{"url":"https://curl.se/docs/CVE-2025-10148.json","tags":["Vendor Advisory"],"source":"2499f714-1537-4658-8207-48ae4bb9eae9"},{"url":"https://hackerone.com/reports/3330839","tags":["Issue Tracking","Third Party Advisory"],"source":"2499f714-1537-4658-8207-48ae4bb9eae9"},{"url":"http://www.openwall.com/lists/oss-security/2025/09/10/2","tags":["Mailing List","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2025/09/10/3","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2025/09/10/4","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-10148","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."}