CVE-2026-6873

What it is

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.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account. Limited direct impact.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-06-03 14:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-07-21 19:10 UTC Last updatedMost recent change to the record

Details

Published

2026-06-03 14:16 UTC

Last modified

2026-07-21 19:10 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-347

Record status

Analyzed

Affected

• Djangoproject Django < 5.2.15
• Djangoproject Django < 6.0.6

Attack profile CVSS 4.0 · 2.3

Attack vector

Network

Complexity

Low

Attack requirements

Present

Privileges needed

Low

User interaction

None

Confidentiality

Low

Integrity

None

Availability

None