CVE-2026-25673 - Potential denial-of-service vulnerability in URLField via Unicode normalization ...

CVE ID : CVE-2026-25673 Published : March 3, 2026, 3:16 p.m. | 57 minutes ago Description : 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 calls `urllib.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. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...