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CRITICAL

SQL injection in user lookup endpoint

Returns the full user table including PII for any unauthenticated request.

api-gateway
CRITICAL

SSRF in webhook handler allows internal network probing

api-gateway
CRITICAL

Auth bypass via JWT algorithm confusion

auth-service
EvidenceExploit confirmed in production
GET /v2/users/lookup?id=1' OR '1'='1
200 OK · 312ms · 4,812 rows returned

[
  { "id": 1, "email": "ceo@acme-corp.com", "ssn": "***-**-1844" },
  { "id": 2, "email": "cfo@acme-corp.com", "ssn": "***-**-2901" },
  { "id": 3, "email": "vp.eng@acme-corp.com", "ssn": "***-**-3318" },
  · 4,809 more records
]
00:0002:1404:08
AGENT LOGagent-recon-7
02:14.382  probe /api/v2/users/lookup
02:14.401  → candidate: SQL injection via id param
02:14.456  → payload: 1' OR '1'='1
02:14.694  ✓ 200 OK · 4,812 rows · exploit confirmed
02:14.701  filing finding F-01 · severity: critical
02:14.812  synced to github.com/acme-corp/api/issues/4421
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FINDINGS23ACTIVITY19 May 2026
CRITF-01SQL injection in user lookup endpointapi-gateway
CRITF-02SSRF in webhook handlerapi-gateway
HIGHF-03Authentication bypass via JWT algorithm confusionauth-service
HIGHF-04Hardcoded API key in payment servicepayment-api
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attack-surface·production
attack path
internetPUBLIC ENTRY
api-gatewaySQL INJECTION
users-dbPII · TARGET
github-token
auth-service
billing-svc
×

Reachable from internetinternet → api-gateway → users-db · 3 hops

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acme-corp/api-gateway·production
merge blocked
82app.get('/api/v2/users/lookup', (req, res) => {
83 const { id } = req.query;
84 db.query(`SELECT * FROM users WHERE id=$\{id}`)
85 .then(rows => res.json(rows));
86});
×

Antigen SecuritySQL injection · CWE-89 · 1 critical finding

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