Piccolo Admin is an admin interface and content management system for Python, built on top of Piccolo. Prior to 1.14.0, piccolo_admin/endpoints.py uses superuser_validators to block PUT, PATCH, DELETE, and POST requests by non-superusers but permits GET requests to configured user and session tables, while piccolo_api/session_auth/tables.py exposes SessionsBase.token because the token column is not secret. In deployments that add the Sessions and User tables to create_admin, a non-superuser administrator can call GET /api/tables/sessions/, obtain another user's live session token, replay it as the Cookie id value to impersonate a superuser, and permanently set superuser to true on the attacker's own row. This issue is fixed in version 1.14.0.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-200",
"CWE-269",
"CWE-863"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55485.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "1.14.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "96ddae12baf12288056cbb0cda6f9e8d7e22c86d"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "1.14.0",
"range": [
{
"fixed": "d6053adc9f6d2db49cba9bcce97914ac3b2b989a"
}
],
"source": "REFERENCES_TAG"
}
]
}
{
"extracted_events": [
{
"range": [
{
"fixed": "520ec2567ae1d2cc417c8c0d1ad0ddc05549a8a4"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "1.10.0",
"range": [
{
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}
],
"source": "REFERENCES_TAG"
}
]
}