Next.js x-nextjs-data redirect cache poisoning (GHSA-3g8h) detection
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from kittysploit import *
from lib.protocols.http.http_client import Http_client
from lib.scanner.http.nextjs_probe import run_nextjs_version_scan
class Module(Scanner, Http_client):
__info__ = {
"name": "Next.js x-nextjs-data redirect cache poisoning (GHSA-3g8h) detection",
"description": (
"Fingerprints Next.js and flags versions < 16.2.5 affected by GHSA-3g8h-86w9-wvmq "
"(x-nextjs-data redirect cache poisoning)."
),
"author": ["KittySploit Team"],
"severity": "high",
"advisory": "GHSA-3g8h-86w9-wvmq",
"references": ["https://github.com/advisories/GHSA-3g8h-86w9-wvmq"],
"modules": [
"auxiliary/scanner/http/nextjs_ghsa_3g8h_86w9_wvmq_x_nextjs_data_redirect"],
"tags": ["scanner", "nextjs", "cache-poison", "redirect", "ghsa-3g8h"],
'agent': {
'risk': 'active',
'effects': ['network_probe'],
'expected_requests': 1,
'reversible': True,
'approval_required': False,
'produces': ['tech_hints', 'risk_signals', 'endpoints'],
'cost': 1.0,
'noise': 0.2,
'value': 1.0,
'requires': {'min_endpoints': 0,
'min_params': 0,
'tech_hints_any': [],
'tech_hints_all': [],
'specializations_any': [],
'risk_signals_any': [],
'auth_session': False,
'capabilities_any': [],
'capabilities_all': [],
'confidence_min': {},
'confidence_min_any': {},
'endpoint_pattern_any': [],
'param_any': [],
'api_surface_ready': False},
'chain': {'produces_capabilities': [{'capability': 'admin_surface', 'from_detail': ''}],
'consumes_capabilities': [],
'option_bindings': {},
'suggested_followups': []},
},
}
def run(self):
return run_nextjs_version_scan(
self,
advisory="GHSA-3g8h-86w9-wvmq",
patched_version="16.2.5",
issue_label="GHSA-3g8h x-nextjs-data redirect cache poisoning",
severity="high",
)
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05 Aug 2026 13:34Current
5.7Medium risk
Vulners AI Score5.7