CVE-2026-25673
- Source
- https://cve.org/CVERecord?id=CVE-2026-25673
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25673.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-25673
- Aliases
- Downstream
- Related
- Published
- 2026-03-03T15:16:19.103Z
- Modified
- 2026-04-10T05:40:42.849995Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
An issue was discovered in 6.0 before 6.0.3, 5.2 before 5.2.12, and 4.2 before 4.2.29.
URLField.to_python()in Django callsurllib.parse.urlsplit(), which performs NFKC normalization on Windows that is disproportionately slow for certain Unicode characters, allowing a remote attacker to cause denial of service via large URL inputs containing these characters. 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. - References
Affected packages
Git / github.com/django/django
Affected ranges
- Type
- GIT
- Repo
- https://github.com/django/django
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixedIntroducedFixed
- Database specific
{ "versions": [ { "introduced": "4.2.0" }, { "fixed": "4.2.29" }, { "introduced": "5.2" }, { "fixed": "5.2.12" }, { "introduced": "6.0" }, { "fixed": "6.0.3" } ] }
Affected versions
1.*
1.0
1.1
1.2
1.2.1
1.3
1.4
1.7a2
4.*
4.2
4.2.1
4.2.10
4.2.11
4.2.12
4.2.13
4.2.14
4.2.15
4.2.16
4.2.17
4.2.18
4.2.19
4.2.2
4.2.20
4.2.21
4.2.22
4.2.23
4.2.24
4.2.25
4.2.26
4.2.27
4.2.28
4.2.3
4.2.4
4.2.5
4.2.6
4.2.7
4.2.8
4.2.9
4.2a1
4.2b1
4.2rc1
5.*
5.2
5.2.1
5.2.10
5.2.11
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.2.8
5.2.9
6.*
6.0
6.0.1
6.0.2