Vulnerability advisory

GHSA-h7pc-vwp9-298g

Django: signed cookies are vulnerable to salt namespace collisions

Published Jun 3, 2026Updated Sep 10, 2026OSV record ↗

Also known as BIT-django-2026-6873CVE-2026-6873PYSEC-2026-199

Severity

CVSS 3.xCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS 4.0CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Affected versions

django PyPI

All django advisories →

Affected	Fixed in
All versions before 5.2.15	`5.2.15`Advisories →
Also listed as affected (422) `1.0.1` `1.0.2` `1.0.3` `1.0.4` `1.1` `1.1.1` `1.1.2` `1.1.3` `1.1.4` `1.10` `1.10.1` `1.10.2` `1.10.3` `1.10.4` `1.10.5` `1.10.6` `1.10.7` `1.10.8` `1.10a1` `1.10b1` `1.10rc1` `1.11` `1.11.1` `1.11.10` `1.11.11` `1.11.12` `1.11.13` `1.11.14` `1.11.15` `1.11.16` `1.11.17` `1.11.18` `1.11.2` `1.11.20` `1.11.21` `1.11.22` `1.11.23` `1.11.24` `1.11.25` `1.11.26` `1.11.27` `1.11.28` `1.11.29` `1.11.3` `1.11.4` `1.11.5` `1.11.6` `1.11.7` `1.11.8` `1.11.9` `1.11a1` `1.11b1` `1.11rc1` `1.2` `1.2.1` `1.2.2` `1.2.3` `1.2.4` `1.2.5` `1.2.6` `1.2.7` `1.3` `1.3.1` `1.3.2` `1.3.3` `1.3.4` `1.3.5` `1.3.6` `1.3.7` `1.4` `1.4.1` `1.4.10` `1.4.11` `1.4.12` `1.4.13` `1.4.14` `1.4.15` `1.4.16` `1.4.17` `1.4.18` `1.4.19` `1.4.2` `1.4.20` `1.4.21` `1.4.22` `1.4.3` `1.4.4` `1.4.5` `1.4.6` `1.4.7` `1.4.8` `1.4.9` `1.5` `1.5.1` `1.5.10` `1.5.11` `1.5.12` `1.5.2` `1.5.3` `1.5.4` `1.5.5` `1.5.6` `1.5.7` `1.5.8` `1.5.9` `1.6` `1.6.1` `1.6.10` `1.6.11` `1.6.2` `1.6.3` `1.6.4` `1.6.5` `1.6.6` `1.6.7` `1.6.8` `1.6.9` `1.7` `1.7.1` `1.7.10` `1.7.11` `1.7.2` `1.7.3` `1.7.4` `1.7.5` `1.7.6` `1.7.7` `1.7.8` `1.7.9` `1.8` `1.8.1` `1.8.10` `1.8.11` `1.8.12` `1.8.13` `1.8.14` `1.8.15` `1.8.16` `1.8.17` `1.8.18` `1.8.19` `1.8.2` `1.8.3` `1.8.4` `1.8.5` `1.8.6` `1.8.7` `1.8.8` `1.8.9` `1.8a1` `1.8b1` `1.8b2` `1.8c1` `1.9` `1.9.1` `1.9.10` `1.9.11` `1.9.12` `1.9.13` `1.9.2` `1.9.3` `1.9.4` `1.9.5` `1.9.6` `1.9.7` `1.9.8` `1.9.9` `1.9a1` `1.9b1` `1.9rc1` `1.9rc2` `2.0` `2.0.1` `2.0.10` `2.0.12` `2.0.13` `2.0.2` `2.0.3` `2.0.4` `2.0.5` `2.0.6` `2.0.7` `2.0.8` `2.0.9` `2.0a1` `2.0b1` `2.0rc1` `2.1` `2.1.1` `2.1.10` `2.1.11` `2.1.12` `2.1.13` `2.1.14` `2.1.15` `2.1.2` `2.1.3` `2.1.4` `2.1.5` `2.1.7` `2.1.8` `2.1.9` `2.1a1` `2.1b1` `2.1rc1` `2.2` `2.2.1` `2.2.10` `2.2.11` `2.2.12` `2.2.13` `2.2.14` `2.2.15` `2.2.16` `2.2.17` `2.2.18` `2.2.19` `2.2.2` `2.2.20` `2.2.21` `2.2.22` `2.2.23` `2.2.24` `2.2.25` `2.2.26` `2.2.27` `2.2.28` `2.2.3` `2.2.4` `2.2.5` `2.2.6` `2.2.7` `2.2.8` `2.2.9` `2.2a1` `2.2b1` `2.2rc1` `3.0` `3.0.1` `3.0.10` `3.0.11` `3.0.12` `3.0.13` `3.0.14` `3.0.2` `3.0.3` `3.0.4` `3.0.5` `3.0.6` `3.0.7` `3.0.8` `3.0.9` `3.0a1` `3.0b1` `3.0rc1` `3.1` `3.1.1` `3.1.10` `3.1.11` `3.1.12` `3.1.13` `3.1.14` `3.1.2` `3.1.3` `3.1.4` `3.1.5` `3.1.6` `3.1.7` `3.1.8` `3.1.9` `3.1a1` `3.1b1` `3.1rc1` `3.2` `3.2.1` `3.2.10` `3.2.11` `3.2.12` `3.2.13` `3.2.14` `3.2.15` `3.2.16` `3.2.17` `3.2.18` `3.2.19` `3.2.2` `3.2.20` `3.2.21` `3.2.22` `3.2.23` `3.2.24` `3.2.25` `3.2.3` `3.2.4` `3.2.5` `3.2.6` `3.2.7` `3.2.8` `3.2.9` `3.2a1` `3.2b1` `3.2rc1` `4.0` `4.0.1` `4.0.10` `4.0.2` `4.0.3` `4.0.4` `4.0.5` `4.0.6` `4.0.7` `4.0.8` `4.0.9` `4.0a1` `4.0b1` `4.0rc1` `4.1` `4.1.1` `4.1.10` `4.1.11` `4.1.12` `4.1.13` `4.1.2` `4.1.3` `4.1.4` `4.1.5` `4.1.6` `4.1.7` `4.1.8` `4.1.9` `4.1a1` `4.1b1` `4.1rc1` `4.2` `4.2.1` `4.2.10` `4.2.11` `4.2.12` `4.2.13` `4.2.14` `4.2.15` `4.2.16` `4.2.17` `4.2.18` `4.2.19` `4.2.2` `4.2.20` `4.2.21` `4.2.22` `4.2.23` `4.2.24` `4.2.25` `4.2.26` `4.2.27` `4.2.28` `4.2.29` `4.2.3` `4.2.30` `4.2.4` `4.2.5` `4.2.6` `4.2.7` `4.2.8` `4.2.9` `4.2a1` `4.2b1` `4.2rc1` `5.0` `5.0.1` `5.0.10` `5.0.11` `5.0.12` `5.0.13` `5.0.14` `5.0.2` `5.0.3` `5.0.4` `5.0.5` `5.0.6` `5.0.7` `5.0.8` `5.0.9` `5.0a1` `5.0b1` `5.0rc1` `5.1` `5.1.1` `5.1.10` `5.1.11` `5.1.12` `5.1.13` `5.1.14` `5.1.15` `5.1.2` `5.1.3` `5.1.4` `5.1.5` `5.1.6` `5.1.7` `5.1.8` `5.1.9` `5.1a1` `5.1b1` `5.1rc1` `5.2` `5.2.1` `5.2.10` `5.2.11` `5.2.12` `5.2.13` `5.2.14` `5.2.2` `5.2.3` `5.2.4` `5.2.5` `5.2.6` `5.2.7` `5.2.8` `5.2.9` `5.2a1` `5.2b1` `5.2rc1`
`6.0.0` to before 6.0.6	`6.0.6`Advisories →
Also listed as affected (6) `6.0` `6.0.1` `6.0.2` `6.0.3` `6.0.4` `6.0.5`

Description

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.

GHSA-h7pc-vwp9-298g

Affected versions

django PyPI

Description

References