# CVE-2026-48587: python-django: An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6

CVE-2026-48587 is fixed in 2 products on 1 platform, first by SUSE-SU-2026:2318-1, released June 9, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-48587
- Priority: Routine
- CVSS: 5.3 (medium)
- EPSS: 0.0037
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 3, 2026

## Description

An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6. `django.utils.cache.has_vary_header()` in Django does not strip leading or trailing whitespace from `Vary` response header values before comparison, which allows remote attackers to read cached responses via requests to URLs whose responses contain whitespace-padded Vary header values. 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 Navid Rezazadeh for reporting this issue.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | python-Django opensuse-leap 16.0 | 5.2.4-bp160.9.1 | [OPENSUSE-SU-2026:20937-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20937-1.md) | Jun 10, 2026 |
| Linux | python-Django sles 15.7 | 4.2.11-150600.3.59.1 | [SUSE-SU-2026:2318-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2318-1.md) | Jun 9, 2026 |
| Linux | python-django Debian 12.15 (bookworm) | 3:3.2.25-0+deb12u5 | [DEBIAN-CVE-2026-48587](https://patchblox.com/security/data/fix/linux/debian-cve-2026-48587.md) | Jun 25, 2026 |
| Linux | python-django Debian 14 | 3:5.2.15-1 | [DEBIAN-CVE-2026-48587](https://patchblox.com/security/data/fix/linux/debian-cve-2026-48587.md) | Jun 25, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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