{"id":"CVE-2026-53878","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-53878","generatedAt":"2026-10-28T02:22:57.049Z","title":"If an application uses values with newlines in an HTTP response, header injection can occur.","description":"An issue was discovered in Django 6.0 before 6.0.7 and 5.2 before 5.2.16.\n`DomainNameValidator` does not prohibit newlines in domain names (unless used via a form field, since `CharField` strips newlines). If an application uses values with newlines in an HTTP response, header injection can occur. Django itself is unaffected because `HttpResponse` prohibits newlines in HTTP headers.\nEarlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.\nDjango would like to thank Bence Nagy for reporting this issue.","published":"2026-07-07T15:16:49.000Z","lastModified":"2026-10-25T20:10:00.000Z","status":"Analyzed","sourceIdentifier":"6a34fbeb-21d4-45e7-8e0a-62b95bc12c92","cvss":{"version":"4.0","score":5.3,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-144"],"affected":["djangoproject/django"],"epss":{"score":0.00327,"percentile":0.25569,"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 (0.33%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://docs.djangoproject.com/en/dev/releases/security/","tags":["Patch","Vendor Advisory"],"source":"6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"},{"url":"https://groups.google.com/g/django-announce","tags":["Release Notes"],"source":"6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"},{"url":"https://www.djangoproject.com/weblog/2026/jul/07/security-releases/","tags":["Vendor Advisory","Patch"],"source":"6a34fbeb-21d4-45e7-8e0a-62b95bc12c92"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53878","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."}