Stigmem nodes configured with authentication disabled could grant the anonymous identity broad read/write/federation capabilities if exposed outside a loopback-only local development environment. Impacted users are operators who intentionally disabled authentication while binding the node to a non-loopback URL.
Patched in 0.9.0a2. The node now refuses unauthenticated operation outside loopback-only local development.
Before upgrading, keep authentication enabled for all non-local deployments and do not expose nodes with authentication disabled to untrusted networks.
Upgrade to the patched release:
pip install --upgrade --pre stigmem-node
If developers install through the Stigmem meta-package instead, they should use the matching extra for their deployments, for example:
pip install --upgrade --pre 'stigmem[node]'
{
"cwe_ids": [
"CWE-285",
"CWE-862"
],
"github_reviewed": true,
"github_reviewed_at": "2026-05-29T22:13:47Z",
"nvd_published_at": null,
"severity": "CRITICAL"
}