What is CVE-2026-48588?

CVE-2026-48588 is a low-severity vulnerability in Djangoproject Django, classified under Use of Cache Containing Sensitive Information. CVSS score: 3.1/10. Published 2026-07-07.

How severe is CVE-2026-48588?

Low severity. CVSS v3 base score is 3.1 out of 10.

Vulnerability in Djangoproject Django

CVE-2026-48588

An issue was discovered in Django 6.0 before 6.0.7 and 5.2 before 5.2.16. `UpdateCacheMiddleware` and the `cache_page()` decorator cache responses that vary on cookies when the incoming request carries unrelated cookies, which allows remote attackers to read private data from the shared cache. 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 Chris Whyland for reporting this issue.

EPSS: 0.004 (29.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

Djangoproject Django — versions 6.0, 6.0.7, 5.2

Weakness classification (CWE)

CWE-524 — Use of Cache Containing Sensitive Information

References

6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 (vendor-advisory, Patch, Vendor Advisory)
6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 (mailing-list, Release Notes)
6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 (vendor-advisory, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-48588?: CVE-2026-48588 is a low-severity vulnerability in Djangoproject Django, classified under Use of Cache Containing Sensitive Information. CVSS score: 3.1/10. Published 2026-07-07.
How severe is CVE-2026-48588?: Low severity. CVSS v3 base score is 3.1 out of 10.