{"id":"CVE-2026-107928","title":"curl: curl: info leak uploading over WebSockets with GnuTLS (CVE-2026-107928)","summary":"A flaw was found in curl. When curl is built with the GnuTLS library, a blocked transmission during communication with a malicious WebSocket server can trigger an out-of-bounds memory read. A malicious server can exploit this flaw to expos…","severity":"medium","cvss":4.8,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L","cvssSource":"vendor","cwe":"CWE-126","vendor":"Red Hat","product":"Red Hat Hardened Images","affected":["hardened_images"],"patched":["hardened_images"],"published":"2026-10-14","updated":"2026-10-23","sourceUpdated":"2026-10-23T00:38:20+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-107928.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-107928.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-107928"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2550720"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-107928"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107928"},{"url":"https://access.redhat.com/errata/RHSA-2026:82895"},{"url":"https://curl.se/docs/CVE-2026-107928.json","label":"json"},{"url":"https://curl.se/docs/CVE-2026-107928.html","label":"www"},{"url":"https://hackerone.com/reports/4099194","label":"issue"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00293,"epssPercentile":0.21698,"ingestedAt":"2026-10-20T21:19:21.269Z","slug":"CVE-2026-107928","body":"## Overview\n\nA flaw was found in curl. When curl is built with the GnuTLS library, a blocked transmission during communication with a malicious WebSocket server can trigger an out-of-bounds memory read. A malicious server can exploit this flaw to expose sensitive data from neighboring memory buffers or crash the client, leading to information disclosure or a Denial of Service (DoS).\n\n## Vendor advisories\n\n- **RHSA-2026:82895** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-10-14 · [advisory](https://access.redhat.com/errata/RHSA-2026:82895)\n\n**curl: curl: info leak uploading over WebSockets with GnuTLS** — rated Low by Red Hat. Released 2026-10-14, updated 2026-10-23.\n\nFixed:\n\n- Red Hat Hardened Images\n\nNot affected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 7\n- Red Hat Enterprise Linux 8\n- Red Hat Enterprise Linux 9\n- Red Hat Hardened Images\n- Red Hat JBoss Core Services\n- Red Hat Satellite 6\n\n## Remediation\n\nFor details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:82895","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":26.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":228234,"id":"CVE-2026-107928","ts":1792758223239,"field":"cvss","old":null,"new":"4.8"},{"seq":228233,"id":"CVE-2026-107928","ts":1792758223239,"field":"severity","old":"none","new":"medium"}]}