Apache Zeppelin exposes server resources to unauthenticated attackers

Description

The attacker can use the raft server protocol in an unauthenticated way. The attacker can see the server's resources, including directories and files.

This issue affects Apache Zeppelin: from 0.10.1 up to 0.12.0.

Users are recommended to upgrade to version 0.12.0, which fixes the issue by removing the Cluster Interpreter.

Basic information

Type
reviewed
Severity
high
Advisory on GitHub
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Repository advisory
Source code
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Published (advisory)
2025-07-12 18:30:31 UTC
Updated
2025-11-05 20:30:44 UTC
GitHub reviewed
2025-07-14 20:31:20 UTC
NVD published
2025-07-12 17:15:20 UTC

EPSS Score

Score Percentile
0.08% 24.15%

CVSS Scores

Base score Version Severity Vector
7.5 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.

Identifiers

CWEs

CWE id Name
CWE-664 Improper Control of a Resource Through its Lifetime

Affected packages (2)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
maven org.apache.zeppelin:zeppelin-interpreter >= 0.10.1, < 0.12.0 0.12.0
maven org.apache.zeppelin:zeppelin-server >= 0.10.1, < 0.12.0 0.12.0

References

cvelogic Threat Intelligence