{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-1285", "assignerOrgId": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "state": "PUBLISHED", "assignerShortName": "DSF", "dateReserved": "2026-01-21T12:49:21.258Z", "datePublished": "2026-02-03T14:35:50.254Z", "dateUpdated": "2026-02-03T16:22:33.352Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "shortName": "DSF", "dateUpdated": "2026-02-03T14:35:50.254Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-407", "description": "CWE-407: Inefficient Algorithmic Complexity", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-130", "descriptions": [{"lang": "en", "value": "CAPEC-130: Excessive Allocation"}]}], "title": "Potential denial-of-service vulnerability in django.utils.text.Truncator HTML methods", "metrics": [{"other": {"content": {"value": "moderate", "namespace": "https://docs.djangoproject.com/en/dev/internals/security/#security-issue-severity-levels"}, "type": "Django severity rating"}}], "descriptions": [{"lang": "en", "value": "An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28.\n`django.utils.text.Truncator.chars()` and `Truncator.words()` methods (with `html=True`) and the `truncatechars_html` and `truncatewords_html` template filters allow a remote attacker to cause a potential denial-of-service via crafted inputs containing a large number of unmatched HTML end tags.\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 Seokchan Yoon for reporting this issue.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28.</p><p>`django.utils.text.Truncator.chars()` and `Truncator.words()` methods (with `html=True`) and the `truncatechars_html` and `truncatewords_html` template filters allow a remote attacker to cause a potential denial-of-service via crafted inputs containing a large number of unmatched HTML end tags.</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 Seokchan Yoon 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": "6.0.2", "versionType": "semver"}, {"status": "unaffected", "version": "6.0.2", "versionType": "semver"}, {"status": "affected", "version": "5.2", "lessThan": "5.2.11", "versionType": "semver"}, {"status": "unaffected", "version": "5.2.11", "versionType": "semver"}, {"status": "affected", "version": "4.2", "lessThan": "4.2.28", "versionType": "semver"}, {"status": "unaffected", "version": "4.2.28", "versionType": "semver"}]}], "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/feb/03/security-releases/", "name": "Django security releases issued: 6.0.2, 5.2.11, and 4.2.28", "tags": ["vendor-advisory"]}], "credits": [{"lang": "en", "type": "reporter", "value": "Seokchan Yoon"}, {"lang": "en", "type": "remediation developer", "value": "Natalia Bidart"}, {"lang": "en", "type": "coordinator", "value": "Jacob Walls"}], "timeline": [{"lang": "en", "time": "2026-01-20T18:00:00", "value": "Initial report received."}, {"lang": "en", "time": "2026-01-22T18:00:00", "value": "Vulnerability confirmed."}, {"lang": "en", "time": "2026-02-03T08:00:00", "value": "Security release issued."}], "datePublic": "2026-02-03T08:00:00.000Z", "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-02-03T16:22:30.293747Z", "id": "CVE-2026-1285", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"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": "2026-02-03T16:22:33.352Z"}}]}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28.\n`django.utils.text.Truncator.chars()` and `Truncator.words()` methods (with `html=True`) and the `truncatechars_html` and `truncatewords_html` template filters allow a remote attacker to cause a potential denial-of-service via crafted inputs containing a large number of unmatched HTML end tags.\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 Seokchan Yoon for reporting this issue."}], "id": "CVE-2026-1285", "lastModified": "2026-02-03T16:44:03.343", "metrics": {}, "published": "2026-02-03T15:16:13.570", "references": [{"source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "url": "https://docs.djangoproject.com/en/dev/releases/security/"}, {"source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "url": "https://groups.google.com/g/django-announce"}, {"source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "url": "https://www.djangoproject.com/weblog/2026/feb/03/security-releases/"}], "sourceIdentifier": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-407"}], "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "type": "Secondary"}]}

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