{"id":"CVE-2026-8926","title":"When asking curl to use a `.netrc` file to find credentials and at the same\ntime specifying a URL with a username (without a password), like\n`https://user@example.com/`, curl could wrongly get and use the password for\n*another* user set …","summary":"When asking curl to use a `.netrc` file to find credentials and at the same\ntime specifying a URL with a username (without a password), like\n`https://user@example.com/`, curl could wrongly get and use the password for\n*another* user set …","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-522","CWE-289"],"vendor":"haxx","product":"curl","affected":["curl >= 8.11.1, < 8.21.0"],"patched":["curl 8.21.0"],"published":"2026-07-03","updated":"2026-09-15","sourceUpdated":"2026-09-15T07:16:32.980","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-8926","references":[{"url":"https://curl.se/docs/CVE-2026-8926.html","label":"2499f714-1537-4658-8207-48ae4bb9eae9"},{"url":"https://curl.se/docs/CVE-2026-8926.json","label":"2499f714-1537-4658-8207-48ae4bb9eae9"},{"url":"https://hackerone.com/reports/3735184","label":"2499f714-1537-4658-8207-48ae4bb9eae9"},{"url":"https://hackerone.com/reports/3735184","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8926.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-8926"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2496760"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-8926"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8926"},{"url":"https://access.redhat.com/errata/RHSA-2026:69125"},{"url":"https://access.redhat.com/errata/RHSA-2026:34975"},{"url":"https://access.redhat.com/errata/RHSA-2026:29017"}],"tags":["nvd","cve.org","exploit-available","csaf","vex","red-hat","score-dispute"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-07-06T17:01:57.524535Z"},"epss":0.00444,"epssPercentile":0.37861,"ingestedAt":"2026-07-04T04:55:39.443Z","scores":{"nvd":9.1,"vendor":4.8},"slug":"CVE-2026-8926","body":"## Overview\n\nWhen asking curl to use a `.netrc` file to find credentials and at the same\ntime specifying a URL with a username (without a password), like\n`https://user@example.com/`, curl could wrongly get and use the password for\n*another* user set in the `.netrc` file for that host if such a one exists and\nthere is no match for the specified user.\n\n## Affected\n\n- `curl >= 8.11.1, < 8.21.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `curl 8.21.0`\n\n## Vendor advisories\n\n- **RHSA-2026:69125** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10) · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69125)\n- **RHSA-2026:34975** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-07-02 · [advisory](https://access.redhat.com/errata/RHSA-2026:34975)\n- **RHSA-2026:29017** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-06-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:29017)\n- **Red Hat VEX** · Moderate · affected: Red Hat OpenShift Container Platform 4, Red Hat OpenShift Dev Spaces, Red Hat Trusted Profile Analyzer · no fix planned: Red Hat OpenShift Container Platform 4, Red Hat OpenShift Dev Spaces, Red Hat Trusted Profile Analyzer · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8926.json)","depth":"abyssal","depthScore":62,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":203500,"id":"CVE-2026-8926","ts":1789457645807,"field":"exploit_available","old":"false","new":"true"},{"seq":203499,"id":"CVE-2026-8926","ts":1789457645807,"field":"cvss","old":null,"new":"9.1"},{"seq":203498,"id":"CVE-2026-8926","ts":1789457645807,"field":"severity","old":"none","new":"critical"}]}