Django vulnerable to SQL injection via _connector keyword argument in QuerySet and Q objects.

Description

An issue was discovered in 5.1 before 5.1.14, 4.2 before 4.2.26, and 5.2 before 5.2.8.
The methods QuerySet.filter(), QuerySet.exclude(), and QuerySet.get(), and the class Q(), are subject to SQL injection when using a suitably crafted dictionary, with dictionary expansion, as the _connector argument.
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 cyberstan for reporting this issue.

Basic information

Type
reviewed
Severity
critical
Advisory on GitHub
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Repository advisory
Source code
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Published (advisory)
2025-11-05 15:31:07 UTC
Updated
2026-06-05 14:34:00 UTC
GitHub reviewed
2025-11-05 19:55:43 UTC
NVD published
2025-11-05

EPSS Score

Score Percentile
0.30% 53.13%

CVSS Scores

Base score Version Severity Vector
9.1 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.

Identifiers

CWEs

CWE id Name
CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Credits

  • omarkurt (analyst)

Affected packages (3)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
pip django >= 5.2a1, < 5.2.8 5.2.8
pip django >= 5.0a1, < 5.1.14 5.1.14
pip django < 4.2.26 4.2.26

References

cvelogic Threat Intelligence