Vulnerabilities in pkg:pypi/djoser

PACKAGE
Advisory Identifier: GHSA-v49p-m6gh-747c
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Advisory Summary

CVE-2024-21543 is a HIGH (CVSS 7.1) authentication bypass vulnerability (CWE-287: Improper Authentication) affecting Djoser libraries in the PyPI ecosystem. The issue involves djoser authentication bypass. Remediation is available by upgrading affected packages to version 2.3.0.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:pypi/djoser

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:pypi/djoser. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-v49p-m6gh-747c CVE-2024-21543 HIGH djoser Authentication Bypass

CVE-2024-21543 at a Glance

CVE Identifier CVE-2024-21543
GHSA Identifier GHSA-v49p-m6gh-747c
Severity HIGH
CVSS v3.1 Base Score 7.1
CWE Classification CWE-287: Improper Authentication
Affected Product Djoser
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2024-21543

To remediate this vulnerability, upgrade all affected Djoser dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

djoser fixed: 2.3.0 
pip install djoser>=2.3.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show djoser

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2024-21543, inspect your installed packages using pip:

pip show djoser

Analyze the terminal output to locate any version of Djoser in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.3.0), your application is affected.

Note: The pip show djoser command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Djoser, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Versions of the package djoser before 2.3.0 are vulnerable to Authentication Bypass when the authenticate() function fails. This is because the system falls back to querying the database directly, granting access to users with valid credentials, and eventually bypassing custom authentication checks such as two-factor authentication, LDAP validations, or requirements from configured AUTHENTICATION_BACKENDS.

CVE-2024-21543 Affected Djoser Versions

1 component(s)
Fixed Versions:
2.3.0
Product / Package Ecosystem Affected Versions Fixed Version
djoser
pypi/djoser
PyPI
< 2.3.0
2.3.0

References

Djoser Source Repository REPOSITORY
https://github.com/sunscrapers/djoser
Djoser Release RELEASE
https://github.com/sunscrapers/djoser/releases/tag/2.3.0
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2025/02/msg00023.html
Djoser Security Information SECURITY
https://security.snyk.io/vuln/SNYK-PYTHON-DJOSER-8366540
NVD — CVE-2024-21543 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-21543
Djoser Source Repository REPOSITORY
https://github.com/sunscrapers/djoser/issues/795
Djoser Source Repository REPOSITORY
https://github.com/sunscrapers/djoser/pull/819
Security Fix Commit FIX COMMIT
https://github.com/sunscrapers/djoser/commit/d33c3993c0c735f23cbedc60fa59fce69354f19d
Djoser Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/djoser/PYSEC-2024-158.yaml

Frequently Asked Questions

What is CVE-2024-21543?
CVE-2024-21543 is a security vulnerability in Djoser involving djoser Authentication Bypass under CWE-287: Improper Authentication.
Which Djoser versions are affected?
Affected versions include releases prior to 2.3.0 across affected packages: djoser.
What version fixes CVE-2024-21543?
Upgrading to 2.3.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is djoser affected?
Yes, djoser is affected in releases prior to 2.3.0. Upgrade your dependency to 2.3.0 or later.
What is the CVSS score of CVE-2024-21543?
CVE-2024-21543 has a CVSS v3.1 base score of 7.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.
What CWE is associated with CVE-2024-21543?
CVE-2024-21543 is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check PyPI dependencies for CVE-2024-21543?
Run the dependency tree command: 'pip show djoser'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-v49p-m6gh-747c",
  "modified" : "2025-02-21T16:08:48Z",
  "published" : "2024-12-13T06:30:58Z",
  "aliases" : [ "CVE-2024-21543" ],
  "summary" : "djoser Authentication Bypass",
  "details" : "Versions of the package djoser before 2.3.0 are vulnerable to Authentication Bypass when the authenticate() function fails. This is because the system falls back to querying the database directly, granting access to users with valid credentials, and eventually bypassing custom authentication checks such as two-factor authentication, LDAP validations, or requirements from configured AUTHENTICATION_BACKENDS.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "djoser"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.3.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-21543"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/sunscrapers/djoser/issues/795"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/sunscrapers/djoser/pull/819"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/sunscrapers/djoser/commit/d33c3993c0c735f23cbedc60fa59fce69354f19d"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/djoser/PYSEC-2024-158.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/sunscrapers/djoser"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/sunscrapers/djoser/releases/tag/2.3.0"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2025/02/msg00023.html"
  }, {
    "type" : "WEB",
    "url" : "https://security.snyk.io/vuln/SNYK-PYTHON-DJOSER-8366540"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287", "CWE-295" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-12-13T20:37:27Z",
    "nvd_published_at" : "2024-12-13T05:15:07Z"
  }
}