High severity · published Aug 18, 2026
CVE-2026-75840
ArcadeDB before 26.8.1 Arbitrary File Read via Unescaped Regex
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
ArcadeDB before 26.8.1 contains an arbitrary file read vulnerability in the GraalVM JavaScript sandbox allowlist enforcement, which uses unescaped regular expressions to validate package names. Attackers with trigger creation privileges can use Java.type() to access java.util.zip.ZipFile or java.util.jar.JarFile classes and read arbitrary files on the host system as the ArcadeDB server process.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AR
arcadedb · ArcadeData
before 26.8.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-75840
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-75840
github.com
https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-wx28-2265-f788
www.vulncheck.com
https://www.vulncheck.com/advisories/arcadedb-before-arbitrary-file-read-via-unescaped-regex
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