An issue was discovered in 5.2 before 5.2.9, 5.1 before 5.1.15, and 4.2 before 4.2.27.
Algorithmic complexity in django.core.serializers.xml_serializer.getInnerText() allows a remote attacker to cause a potential denial-of-service attack triggering CPU and memory exhaustion via specially crafted XML input processed by the XML Deserializer.
Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.
Django would like to thank Seokchan Yoon for reporting this issue.
CVE-2025-64460
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 79% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 80.5%
- KEV
- Not listed
Published
December 2, 2025
Last Modified
June 17, 2026
References (3)
- 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92https://docs.djangoproject.com/en/dev/releases/security/
- 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92https://groups.google.com/g/django-announce
- 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92https://www.djangoproject.com/weblog/2025/dec/02/security-releases/
Vendor Advisories for CVE-2025-64460(7)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:1609Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.5 Container Release Update
- RHSA-2026:1599Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.4 Container Release Update
- RHSA-2026:1506Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update
- RHSA-2026:1497Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.4 Product Security and Bug Fix Update
- RHSA-2026:1249Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update
- RHSA-2026:0414Red Hat Product SecurityHigh
Red Hat Security Advisory: A Subscription Management tool for finding and reporting Red Hat product usage
- GHSA-vrcr-9hj9-jcg6GitHub Security AdvisoriesMedium
Django is vulnerable to DoS via XML serializer text extraction
Patch Availability(7)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | python3-django (2:3.2.12-2ubuntu1.24) @ jammy | 2026-05-29 | ubuntu |
| redhat | ansible-automation-platform-25/lightspeed-rhel8:1768874696 | 2026-01-30 | redhat |
| redhat | ansible-automation-platform-24/lightspeed-rhel8:1768268588 | 2026-01-29 | redhat |
| redhat | automation-controller-0:4.5.30-1.el9ap | 2026-01-28 | redhat |
| redhat | python3.11-django-0:4.2.27-1.el9ap | 2026-01-28 | redhat |
| redhat | python3.11-django-0:4.2.27-2.el9ap | 2026-01-26 | redhat |
| redhat | discovery/discovery-server-rhel9:1767888970 | 2026-01-08 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| django | 4.2 ... 5.2.8 (51 versions) | 5.2.9 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 9× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
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- 2026-07-07 13:46 UTCEPSS rescore
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 09:11 UTCOSV refresh
- 2026-07-06 02:23 UTCEPSS rescore
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- 2026-07-05 02:30 UTCEPSS rescore
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- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-17 20:43 UTCOSV refresh
- 2026-06-17 17:52 UTCEPSS rescore
- 2026-06-16 17:52 UTCEPSS rescore
- 2026-06-15 17:48 UTCEPSS rescore
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- 2026-06-05 22:46 UTCEPSS rescore
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- 2026-05-31 00:16 UTCEPSS rescore
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- 2026-05-29 18:33 UTCEG score recompute
- 2026-05-29 18:33 UTCVendor advisory
- 2026-05-29 13:44 UTCEPSS rescore
Frequently asked(5)
What is CVE-2025-64460?
When was CVE-2025-64460 disclosed?
Is CVE-2025-64460 actively exploited?
What is the CVSS score of CVE-2025-64460?
How do I remediate CVE-2025-64460?
Dependency Blast Radius
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