GHSA-w7pm-9g55-mxfm: Stigmem node Stigmem-node's Unsigned Plugin Override Could Vulnerability

HIGH
Share
CWE-494
Published
Advisory Summary

GHSA-w7pm-9g55-mxfm is a HIGH stigmem-node's unsigned plugin override could vulnerability (CWE-494: Download of Code Without Integrity Check) affecting Stigmem node libraries in the PyPI ecosystem. The issue involves stigmem-node's unsigned plugin override could be enabled without a second explicit acknowledgment. Remediation is available by upgrading affected packages to version 0.9.0a2.

GHSA-w7pm-9g55-mxfm at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-w7pm-9g55-mxfm
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-494: Download of Code Without Integrity Check
Affected Product Stigmem node
Package Ecosystem PyPI
Published Date
Last Updated

How to Fix GHSA-w7pm-9g55-mxfm

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

stigmem-node fixed: 0.9.0a2 
pip install stigmem-node>=0.9.0a2
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 stigmem-node

How to Check if You Are Affected

To determine whether your Python environment is affected by GHSA-w7pm-9g55-mxfm, inspect your installed packages using pip:

pip show stigmem-node

Analyze the terminal output to locate any version of Stigmem node in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.9.0a2), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-494: Download of Code Without Integrity Check, where the product downloads source code or an executable from a remote location and executes the code without sufficiently verifying the origin and integrity of the code. In Stigmem node, 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 A single configuration flag could disable plugin signature enforcement. If an operator unintentionally carried that setting into an environment where plugin paths are writable by less-trusted users, unsigned plugin code could be loaded. ### Patches Patched in 0.9.0a2. Disabling plugin signature enforcement now requires a second explicit acknowledgment value. ### Workarounds Before upgrading, keep plugin signing required in all shared or production environments and ensure plugin directories are not writable by untrusted users. ### Upgrade Upgrade to the patched release: ```bash pip install --upgrade --pre stigmem-node ``` If developers install through the Stigmem meta-package instead, they should use the matching extra for deployments, for example: ```bash pip install --upgrade --pre 'stigmem[node]' ``` ### Resources - Release: https://github.com/eidetic-labs/stigmem/releases/tag/v0.9.0a2 - Changelog: https://github.com/eidetic-labs/stigmem/blob/v0.9.0a2/CHANGELOG.md#L14-L35 - Security policy and posture: https://github.com/eidetic-labs/stigmem/blob/v0.9.0a2/SECURITY.md

GHSA-w7pm-9g55-mxfm Affected Stigmem node Versions

1 component(s)
Fixed Versions:
0.9.0a2
Product / Package Ecosystem Affected Versions Fixed Version
stigmem-node
pypi/stigmem-node
PyPI
< 0.9.0a2
0.9.0a2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-w7pm-9g55-mxfm
Stigmem node Source Repository REPOSITORY
https://github.com/eidetic-labs/stigmem
Stigmem node Source Repository REPOSITORY
https://github.com/eidetic-labs/stigmem/blob/v0.9.0a2/CHANGELOG.md#L14-L35
Stigmem node Source Repository REPOSITORY
https://github.com/eidetic-labs/stigmem/blob/v0.9.0a2/SECURITY.md
Stigmem node Release RELEASE
https://github.com/eidetic-labs/stigmem/releases/tag/v0.9.0a2

Frequently Asked Questions

What is GHSA-w7pm-9g55-mxfm?
GHSA-w7pm-9g55-mxfm is a security vulnerability in Stigmem node involving stigmem-node's unsigned plugin override could be enabled without a second explicit acknowledgment under CWE-494: Download of Code Without Integrity Check.
Which Stigmem node versions are affected?
Affected versions include releases prior to 0.9.0a2 across affected packages: stigmem-node.
What version fixes GHSA-w7pm-9g55-mxfm?
Upgrading to 0.9.0a2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is stigmem-node affected?
Yes, stigmem-node is affected in releases prior to 0.9.0a2. Upgrade your dependency to 0.9.0a2 or later.
What CWE is associated with GHSA-w7pm-9g55-mxfm?
GHSA-w7pm-9g55-mxfm is classified under CWE-494: Download of Code Without Integrity Check (The product downloads source code or an executable from a remote location and executes the code without sufficiently verifying the origin and integrity of the code.).
How can I check PyPI dependencies for GHSA-w7pm-9g55-mxfm?
Run the dependency tree command: 'pip show stigmem-node'. 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-w7pm-9g55-mxfm",
  "modified" : "2026-05-29T22:17:21Z",
  "published" : "2026-05-29T22:17:21Z",
  "aliases" : [ ],
  "summary" : "stigmem-node's unsigned plugin override could be enabled without a second explicit acknowledgment",
  "details" : "### Impact\nA single configuration flag could disable plugin signature enforcement. If an operator unintentionally carried that setting into an environment where plugin paths are writable by less-trusted users, unsigned plugin code could be loaded.\n\n### Patches\nPatched in 0.9.0a2. Disabling plugin signature enforcement now requires a second explicit acknowledgment value.\n\n### Workarounds\nBefore upgrading, keep plugin signing required in all shared or production environments and ensure plugin directories are not writable by untrusted users.\n\n### Upgrade\nUpgrade to the patched release:\n\n```bash\npip install --upgrade --pre stigmem-node\n```\n\nIf developers install through the Stigmem meta-package instead, they should use the matching extra for deployments, for example:\n\n```bash\npip install --upgrade --pre 'stigmem[node]'\n```\n\n### Resources\n- Release: https://github.com/eidetic-labs/stigmem/releases/tag/v0.9.0a2\n- Changelog: https://github.com/eidetic-labs/stigmem/blob/v0.9.0a2/CHANGELOG.md#L14-L35\n- Security policy and posture: https://github.com/eidetic-labs/stigmem/blob/v0.9.0a2/SECURITY.md",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "stigmem-node"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.9.0a2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-w7pm-9g55-mxfm"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/eidetic-labs/stigmem"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/eidetic-labs/stigmem/blob/v0.9.0a2/CHANGELOG.md#L14-L35"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/eidetic-labs/stigmem/blob/v0.9.0a2/SECURITY.md"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/eidetic-labs/stigmem/releases/tag/v0.9.0a2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-494" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-29T22:17:21Z",
    "nvd_published_at" : null
  }
}