ArcadeDB Arbitrary File Read via OpenCypher LOAD CSV

ArcadeDB versions before 26.8.1 contain an arbitrary file read vulnerability in the OpenCypher LOAD CSV FROM clause that allows authenticated users to read local files. Attackers with read query privileges can use the file:// protocol in LOAD CSV statements to access arbitrary files with server process privileges, exfiltrating sensitive data directly in query responses.

Casky was already ahead

This CVE exploits attack patterns that Casky's 351matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

ArcadeDB versions before 26.8.1 suffer from an arbitrary file read vulnerability in the OpenCypher LOAD CSV FROM clause that exposes a critical attack surface for authenticated users. By injecting the file:// protocol into LOAD CSV statements, attackers with read query privileges can bypass normal access controls and retrieve arbitrary files using the server process's elevated permissions. This vulnerability is particularly dangerous because it operates within the query layer itself—a trusted component—making detection through standard network controls difficult. Organizations running vulnerable ArcadeDB instances face direct exposure of sensitive configuration files, credentials, private keys, and application data that the database process can access.

Casky's 351 matched security skills leverage Claude's extended reasoning to identify the adversarial patterns underlying this vulnerability across MITRE ATT&CK Techniques TA0001 (Initial Access) and TA0007 (Discovery). Practitioners using Casky would observe detection signals tied to suspicious LOAD CSV patterns with protocol handlers (file://, gopher://, etc.), unusual file path arguments pointing outside the database directory, and authenticated query sessions accessing system-level files. The platform's skills would correlate these query behaviors with Reconnaissance activity (TA0007), flagging when attackers enumerate filesystem structure and sensitive file locations, and Initial Access vectors (TA0001) where file exfiltration becomes the entry point to broader compromise. Real findings would highlight the specific query constructs used, affected user accounts, and the sensitive file paths accessed—enabling rapid containment of compromised credentials or exposure of secrets.

Live Threat IntelligenceComing soon

Casky Risk Score

—

EPSS Probability

—

Shodan Exposure

—

GreyNoise Signal

—

Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

351 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-75842.

Abuse of Public-Facing API: Mobile API Abuse

mobile security · low

Run

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

MITRE ATT&CK Techniques

TA0001 TA0007

Investigate the attack patterns behind CVE-2026-75842

Casky has 351 skills that investigate the attack patterns behind CVE-2026-75842. Run one and get CVSS-scored findings in 3 minutes.

Run the skill that detects this →

X Instagram LinkedIn