CVE-2026-61590: Djust Remote Code Execution Vulnerability

HIGH
Advisory Identifier: GHSA-8g2f-g3gq-5rjv
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CVSS 7.4
CWE-668 CWE-306
Published
Advisory Summary

CVE-2026-61590 is a HIGH (CVSS 7.4) remote code execution vulnerability (CWE-668: Exposure of Resource to Wrong Sphere) affecting Djust libraries in the PyPI ecosystem. The issue involves the localhost gate is an opt-in middleware the docs omit, and the views enforce only debug. Remediation is available by upgrading affected packages to version 1.0.7.

CVE-2026-61590 at a Glance

CVE Identifier CVE-2026-61590
GHSA Identifier GHSA-8g2f-g3gq-5rjv
Severity HIGH
CVSS v3.1 Base Score 7.4
CWE Classification CWE-668: Exposure of Resource to Wrong Sphere
Affected Product Djust
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.4

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

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

How to Fix CVE-2026-61590

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

djust fixed: 1.0.7 
pip install djust>=1.0.7
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 djust

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-61590, inspect your installed packages using pip:

pip show djust

Analyze the terminal output to locate any version of Djust in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.7), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-668: Exposure of Resource to Wrong Sphere, where the product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource. In Djust, 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

### Impact djust's observability endpoints expose live view/session state and a remote method-invocation surface (`eval_handler`). The localhost restriction was an **opt-in middleware that the documented setup omits**; the views themselves enforced only `DEBUG`. In the misconfigured-but-documented scenario (DEBUG on, middleware not installed) a non-localhost client could read live application state and invoke handlers remotely. ### Patches Fixed in **djust 1.0.7**. The localhost restriction is enforced **in-view** on every observability endpoint (no longer dependent on a separately-installed middleware), and `eval_handler` is restricted; gated requests receive a non-disclosing response. ### Workarounds Ensure `DEBUG=False` in production, and do not expose the observability endpoints to untrusted networks.

CVE-2026-61590 Affected Djust Versions

1 component(s)
Fixed Versions:
1.0.7
Product / Package Ecosystem Affected Versions Fixed Version
djust
pypi/djust
PyPI
< 1.0.7
1.0.7

References

GitHub Advisory / Wiki ADVISORY
https://github.com/djust-org/djust/security/advisories/GHSA-8g2f-g3gq-5rjv
Djust Source Repository REPOSITORY
https://github.com/djust-org/djust
Djust Release RELEASE
https://github.com/djust-org/djust/releases/tag/v1.0.7

Frequently Asked Questions

What is CVE-2026-61590?
CVE-2026-61590 is a security vulnerability in Djust involving the localhost gate is an opt-in middleware the docs omit, and the views enforce only DEBUG under CWE-668: Exposure of Resource to Wrong Sphere.
Which Djust versions are affected?
Affected versions include releases prior to 1.0.7 across affected packages: djust.
What version fixes CVE-2026-61590?
Upgrading to 1.0.7 (or the latest patched release for your respective branch) resolves the vulnerability.
Is djust affected?
Yes, djust is affected in releases prior to 1.0.7. Upgrade your dependency to 1.0.7 or later.
What is the CVSS score of CVE-2026-61590?
CVE-2026-61590 has a CVSS v3.1 base score of 7.4 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2026-61590?
CVE-2026-61590 is classified under CWE-668: Exposure of Resource to Wrong Sphere (The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.).
How can I check PyPI dependencies for CVE-2026-61590?
Run the dependency tree command: 'pip show djust'. 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-8g2f-g3gq-5rjv",
  "modified" : "2026-09-16T13:49:19Z",
  "published" : "2026-09-16T13:49:19Z",
  "aliases" : [ "CVE-2026-61590" ],
  "summary" : "djust's observability endpoints are network-exposed: the localhost gate is an opt-in middleware the docs omit, and the views enforce only DEBUG",
  "details" : "### Impact\ndjust's observability endpoints expose live view/session state and a remote method-invocation surface (`eval_handler`). The localhost restriction was an **opt-in middleware that the documented setup omits**; the views themselves enforced only `DEBUG`. In the misconfigured-but-documented scenario (DEBUG on, middleware not installed) a non-localhost client could read live application state and invoke handlers remotely.\n\n### Patches\nFixed in **djust 1.0.7**. The localhost restriction is enforced **in-view** on every observability endpoint (no longer dependent on a separately-installed middleware), and `eval_handler` is restricted; gated requests receive a non-disclosing response.\n\n### Workarounds\nEnsure `DEBUG=False` in production, and do not expose the observability endpoints to untrusted networks.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "djust"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.0.7"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/djust-org/djust/security/advisories/GHSA-8g2f-g3gq-5rjv"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/djust-org/djust"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/djust-org/djust/releases/tag/v1.0.7"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-306", "CWE-668" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-16T13:49:19Z",
    "nvd_published_at" : null
  }
}