How severe is CVE-2026-1285?

CVE-2026-1285 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-1285 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-1285?

CVE-2026-1285 affects Djangoproject Django. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-1285?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-1285 have an EU (EUVD) identifier?

Yes. CVE-2026-1285 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5251.

When was CVE-2026-1285 published?

CVE-2026-1285 was published on 2026-02-03 and last updated on 2026-06-17.

CVE-2026-1285

CVE-2026-1285 is a high-severity vulnerability in Djangoproject Django with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-407.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5251
Weakness: CWE-407
Affected product: Djangoproject Django
Published: 2026-02-03
Last modified: 2026-06-17

Description

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. `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. 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.

Frequently asked questions

What is CVE-2026-1285?: An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. `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. 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.
How severe is CVE-2026-1285?: CVE-2026-1285 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-1285 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1285?: CVE-2026-1285 affects Djangoproject Django. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-1285?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-1285 have an EU (EUVD) identifier?: Yes. CVE-2026-1285 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5251.
When was CVE-2026-1285 published?: CVE-2026-1285 was published on 2026-02-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*

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