GHSA-gg7w-pw2r-x2cq is a medium-severity (CVSS 6.5) Information Exposure vulnerability in org.apache.solr:solr-core. EPSS puts its 30-day exploitation probability at 68.4% (99th percentile). A fix is available for org.apache.solr:solr-core — see the affected versions and patch details below.
Apache Solr allows read access to host environmet variables
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 GHSA-gg7w-pw2r-x2cq.
EPSS Exploitation Probability
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-gg7w-pw2r-x2cq 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
org.apache.solr:solr-coreReal-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
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Solr.
The Solr Metrics API publishes all unprotected environment variables available to each Apache Solr instance. Users are able to specify which environment variables to hide, however, the default list is designed to work for known secret Java system properties. Environment variables cannot be strictly defined in Solr, like Java system properties can be, and may be set for the entire host, unlike Java system properties which are set per-Java-proccess.
The Solr Metrics API is protected by the "metrics-read" permission. Therefore, Solr Clouds with Authorization setup will only be vulnerable via users with the "metrics-read" permission.
This issue affects Apache Solr: from 9.0.0 before 9.3.0.
Users are recommended to upgrade to version 9.3.0 or later, in which environment variables are not published via the Metrics API.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.apache.solr:solr-core | ≥ 9.0.0&&< 9.3.0 | 9.3.0org.apache.solr:solr-core:9.3.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.solr:solr-core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.apache.solr:solr-core to 9.3.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-gg7w-pw2r-x2cq is resolved across your whole dependency graph.
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.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-gg7w-pw2r-x2cq can be triaged on real exposure rather than presence alone.
Tailored to GHSA-gg7w-pw2r-x2cq. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
How to detect GHSA-gg7w-pw2r-x2cq
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id ghsa-gg7w-pw2r-x2cq -u https://target- Template
- Apache Solr - Host Environment Variables Leak via Metrics API
- Severity
- medium
- Impact
- This vulnerability can lead to the exposure of sensitive information, potentially allowing an attacker to gain unauthorized access or perform further attacks.
- Remediation
- Users are recommended to upgrade to version 9.3.0 or later, in which environment variables are not published via the Metrics API.
Template by ProjectDiscovery nuclei-templates (Banana69, DhiyaneshDK), MIT licensed. View the full template. Scan only systems you are authorised to test.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat Fuse 7.13.0 | solr | RHSA-2024:3354 |
Frequently Asked Questions
Is GHSA-gg7w-pw2r-x2cq in your dependencies?
O3 Security finds GHSA-gg7w-pw2r-x2cq across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.