How severe is CVE-2026-54077?

CVE-2026-54077 has a CVSS score of 7.1/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2026-54077?

CVE-2026-54077 affects the following packages: com.arcadedb:arcadedb-engine (Maven). Ecosystems affected: Maven.

How do I fix CVE-2026-54077?

Update com.arcadedb:arcadedb-engine to 26.6.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-54077 is resolved across your whole dependency graph.

How do I detect CVE-2026-54077 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.arcadedb:arcadedb-engine, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2026-54077 if there is no patch (or I can't update yet)?

Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Is CVE-2026-54077 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-54077 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2026-54077?

CVE-2026-54077 has an EPSS (Exploit Prediction Scoring System) score of 0.4%, placing it in the 37th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2026-54077?

CVE-2026-54077 is classified as Path Traversal (CWE-22), CWE-776 (CWE-776), Server-Side Request Forgery (SSRF) (CWE-918). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2026-54077 published, and has it been updated?

CVE-2026-54077 was published on September 15, 2026 and was last updated on October 2, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

HIGH severity

CVE-2026-54077 — arcadedb-engine

HIGHFix: ArcadeData/arcadedb@bdc414c

CVE-2026-54077 is a high-severity (CVSS 7.1) Path Traversal vulnerability in com.arcadedb:arcadedb-engine. A fix is available for com.arcadedb:arcadedb-engine — see the affected versions and patch details below.

ArcadeDB: IMPORT DATABASE allows SSRF and arbitrary local file read by authenticated users

Also known asGHSA-8w86-m9h8-hvqg

Published

Sep 15, 2026

Updated

Oct 2, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Oct 12, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-54077.

EPSS Exploitation Probability

via FIRST.org ↗

0.4%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs37th percentile — riskier than 37% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2026-54077 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,987 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected

☕com.arcadedb:arcadedb-engine

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Impact

The SQL IMPORT DATABASE statement did not require administrative privileges and passed its source URL to the importer without validation. Any authenticated user with SQL command access (not only root/administrators) could therefore:

Server-Side Request Forgery (CWE-918): cause the server to issue HTTP(S) requests to arbitrary destinations, including cloud metadata endpoints (e.g. 169.254.169.254) and internal-only services, and ingest the responses as queryable records.
Arbitrary local file read (CWE-22): read local files reachable by the server process (e.g. /etc/passwd, credential files) by importing file:// paths, exposing their contents as records.

The server administration endpoint (/api/v1/server) was already restricted to the root user and was not affected; the exposure was through the database SQL command/query endpoints (/api/v1/command, /api/v1/query).

A related lower-severity hardening gap (CWE-776): the XML importer did not disable DTD processing, leaving entity-expansion (Billion Laughs) possible.

Affected component

integration/src/main/java/com/arcadedb/integration/importer/SourceDiscovery.java (no host allow-list for http(s); no path validation for file://), reached from engine/.../query/sql/parser/ImportDatabaseStatement.java.

Patches

IMPORT DATABASE now requires the administrative updateSecurity permission (no-op in embedded mode).
Import sources are validated in SourceDiscovery: HTTP(S) hosts resolving to loopback / link-local / private (site-local) / wildcard / multicast addresses are blocked by default (arcadedb.server.security.importBlockLocalNetworks, default true), and an optional local-path allow-list (arcadedb.server.security.importAllowedLocalPaths) restricts file:// reads.
The XML importer now disables DTD processing and external entities.

Fixed in commit referenced by pull request #4422.

Workarounds

Restrict SQL command/query access to trusted administrative users; do not grant query access to untrusted users on servers that can reach sensitive networks or hold sensitive local files. Upgrading is strongly recommended.

Credit

Reported by Bin Luo ([email protected]).

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`com.arcadedb:arcadedb-engine`	all versions	26.6.1`com.arcadedb:arcadedb-engine:26.6.1`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.arcadedb:arcadedb-engine, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update com.arcadedb:arcadedb-engine to 26.6.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-54077 is resolved across your whole dependency graph.
Workarounds
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

### Impact The SQL `IMPORT DATABASE` statement did not require administrative privileges and passed its source URL to the importer without validation. Any authenticated user with SQL command access (not only `root`/administrators) could therefore: - **Server-Side Request Forgery (CWE-918):** cause the server to issue HTTP(S) requests to arbitrary destinations, including cloud metadata endpoints (e.g. `169.254.169.254`) and internal-only services, and ingest the responses as queryable records. - **Arbitrary local file read (CWE-22):** read local files reachable by the server process (e.g. `/e