{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53878","assignerOrgId":"6a34fbeb-21d4-45e7-8e0a-62b95bc12c92","state":"PUBLISHED","assignerShortName":"DSF","dateReserved":"2026-06-11T01:11:27.546Z","datePublished":"2026-07-07T14:10:29.935Z","dateUpdated":"2026-07-07T14:58:18.415Z"},"containers":{"cna":{"providerMetadata":{"orgId":"6a34fbeb-21d4-45e7-8e0a-62b95bc12c92","shortName":"DSF","dateUpdated":"2026-07-07T14:10:29.935Z"},"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-144","description":"CWE-144: Improper Neutralization of Line Delimiters","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-34","descriptions":[{"lang":"en","value":"CAPEC-34: HTTP Response Splitting"}]}],"title":"Header injection possibility since DomainNameValidator accepted newlines in input","metrics":[{"other":{"content":{"value":"low","namespace":"https://docs.djangoproject.com/en/dev/internals/security/#security-issue-severity-levels"},"type":"Django severity rating"}},{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","baseScore":6.1,"baseSeverity":"MEDIUM"}},{"cvssV4_0":{"version":"4.0","vectorString":"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","baseScore":5.3,"baseSeverity":"MEDIUM"}}],"descriptions":[{"lang":"en","value":"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.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>An issue was discovered in Django 6.0 before 6.0.7 and 5.2 before 5.2.16.</p><p><code>DomainNameValidator</code> does not prohibit newlines in domain names (unless used via a form field, since <code>CharField</code> strips newlines). If an application uses values with newlines in an HTTP response, header injection can occur. Django itself is unaffected because <code>HttpResponse</code> prohibits newlines in HTTP headers.</p><p>Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.</p><p>Django would like to thank Bence Nagy for reporting this issue.</p>"}]}],"affected":[{"collectionURL":"https://pypi.org/project/Django/","defaultStatus":"unaffected","packageName":"django","product":"Django","repo":"https://github.com/django/django/","vendor":"djangoproject","versions":[{"status":"affected","version":"6.0","lessThan":"6.0.7","versionType":"python"},{"status":"unaffected","version":"6.0.7","versionType":"python"},{"status":"affected","version":"5.2","lessThan":"5.2.16","versionType":"python"},{"status":"unaffected","version":"5.2.16","versionType":"python"}]}],"references":[{"url":"https://docs.djangoproject.com/en/dev/releases/security/","name":"Django security archive","tags":["vendor-advisory"]},{"url":"https://groups.google.com/g/django-announce","name":"Django releases announcements","tags":["mailing-list"]},{"url":"https://www.djangoproject.com/weblog/2026/jul/07/security-releases/","name":"Django security releases issued: 6.0.7 and 5.2.16","tags":["vendor-advisory"]}],"credits":[{"lang":"en","type":"reporter","value":"Bence Nagy"},{"lang":"en","type":"remediation developer","value":"Natalia Bidart"},{"lang":"en","type":"coordinator","value":"Jacob Walls"}],"timeline":[{"lang":"en","time":"2026-06-02T12:00:00.000Z","value":"Initial report received."},{"lang":"en","time":"2026-06-11T12:00:00.000Z","value":"Vulnerability confirmed."},{"lang":"en","time":"2026-07-07T09:00:00.000Z","value":"Security release issued."}],"datePublic":"2026-07-07T09:00:00.000Z","source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-07T14:58:12.426667Z","id":"CVE-2026-53878","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-07T14:58:18.415Z"}}]}}