CVE-2026-6873Signed cookie salt namespace collision in django.http.HttpRequest.get_signed_cookie
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15. `django.http.HttpRequest.get_signed_cookie` in Django uses a non-injective salt derivation (concatenating the cookie name and salt argument), which allows a remote attacker to use a cookie in a context different from the one where it was signed, via distinct `(name, salt)` pairs that produce the same concatenation. 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 Peng Zhou for reporting this issue.
- CVSS
- 3.1 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weakness (CWE)
- CWE-347
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- DSF
- NVD analysis
- Analyzed
- Record last updated
- Jun 3, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
djangoproject Django djangoproject:django (from the name) | from 6.0 before 6.0.6; 6.0.6 not affected; from 5.2 before 5.2.15; 5.2.15 not affected | CNA record |
djangoproject django djangoproject:django | from 5.2 before 5.2.15; from 6.0 before 6.0.6 | NVD |
References
- https://docs.djangoproject.com/en/dev/releases/security/vendor-advisory, patch
- https://groups.google.com/g/django-announcemailing-list, release-notes
- https://www.djangoproject.com/weblog/2026/jun/03/security-releases/vendor-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.