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Maven
Not in CISA KEV
MEDIUM severity

GHSA-2hpg-vwqj-6h6w kylin

MEDIUM

GHSA-2hpg-vwqj-6h6w is a medium-severity (CVSS 5.3) CWE-922 vulnerability in org.apache.kylin:kylin. 4 public exploit references exist, so weaponization risk is real. A fix is available for org.apache.kylin:kylin — see the affected versions and patch details below.

Authentication bypass in Apache Kylin

Also known asCVE-2020-13937
Published
Feb 10, 2022
Updated
Nov 8, 2023
Affected
2 pkgs
Patched
2 / 2
Exploits
4 known
Exploitation data as of Sep 19, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
78.3%probability of exploitation in next 30 days
Very High Risk0.00%
Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

GHSA-2hpg-vwqj-6h6w plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 377,166 CVEs with a current EPSS score, this one falls in the 50–90% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

2 pkgs affected
org.apache.kylin:kylinorg.apache.kylin:kylin

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

Apache Kylin 2.0.0, 2.1.0, 2.2.0, 2.3.0, 2.3.1, 2.3.2, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.5.2, 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5, 2.6.6, 3.0.0-alpha, 3.0.0-alpha2, 3.0.0-beta, 3.0.0, 3.0.1, 3.0.2, 3.1.0, 4.0.0-alpha has one restful api which exposed Kylin's configuration information without any authentication, so it is dangerous because some confidential information entries will be disclosed to everyone.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
Mavenorg.apache.kylin:kylinall versions3.1.1org.apache.kylin:kylin:3.1.1
Mavenorg.apache.kylin:kylin4.0.0-alpha&&< 4.0.0-beta4.0.0-betaorg.apache.kylin:kylin:4.0.0-beta
Exploits & PoCs
4

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Open-source dependency
  1. Detect

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

  2. Fix

    Update org.apache.kylin:kylin to 3.1.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-2hpg-vwqj-6h6w is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-2hpg-vwqj-6h6w can be triaged on real exposure rather than presence alone.

Tailored to GHSA-2hpg-vwqj-6h6w. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

How to detect GHSA-2hpg-vwqj-6h6w

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id ghsa-2hpg-vwqj-6h6w -u https://target
Template
Apache Kylin - Exposed Configuration File
Severity
medium
Impact
An attacker can gain sensitive information from the exposed configuration file, potentially leading to further attacks.
Remediation
Secure the configuration file by restricting access permissions and implementing proper access controls.

Template by ProjectDiscovery nuclei-templates (pikpikcu), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

Apache Kylin 2.0.0, 2.1.0, 2.2.0, 2.3.0, 2.3.1, 2.3.2, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.5.2, 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5, 2.6.6, 3.0.0-alpha, 3.0.0-alpha2, 3.0.0-beta, 3.0.0, 3.0.1, 3.0.2, 3.1.0, 4.0.0-alpha has one restful api which exposed Kylin's configuration information without any authentication, so it is dangerous because some confidential information entries will be disclosed to everyone.
O3 Security · Impact-Aware SCA

Is GHSA-2hpg-vwqj-6h6w in your dependencies?

O3 Security finds GHSA-2hpg-vwqj-6h6w across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-2hpg-vwqj-6h6w: kylin (Medium 5.3) | O3 Security