WaratekVRT Sign in

CVE-2023-50290 Apache Solr

Affected softwareApache Solr
Severity6.5 Medium CVSS 3.1 2 scores
Fixed in9.3.0
WeaknessInformation exposure (CWE-200)
Published15 Jan 2024
Updated17 Jun 2026

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.

Exploitation status

Working exploit published

A reviewed exploit catalogue lists ready-to-run exploit code for this CVE.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC 2 indexed Published artifacts you can open, in GitHub PoC, Nuclei; first seen 2025-11-06.
  • EPSS 68% chance in 30 days A model's forecast, not a report of exploitation. Higher than 99% of all scored CVEs.

1 of these are GitHub repositories with fewer than 5 stars. They are listed for reference and don't count toward the exploitation status above.

IndexArtifactStarsFirst seen
GitHub PoC Bug bounty and vulnerability research reports by Desai Vinayak — includes CVE-2023-50290 (Apache Solr) and Zscaler subdomain takeover findings. 2025-11-06
Nuclei Apache Solr - Host Environment Variables Leak via Metrics API

Waratek protection

Mitigation candidate

A kind of vulnerability Waratek's rules address, with exploit code published or exploitation reported. No rule exists and none is planned yet. The decision below says what we found to build a rule from.

  • Protection none
  • Action unverified
  • Review automated Inferred
  • Record active
Decided by The affected package being open source on Maven, so the fix can be read
Finding This CVE affects an open-source Java library published on Maven Central (Maven packages: org.apache.solr:solr-core), so it is squarely in ARMR's territory and the source needed to understand the defect is public. That makes it a candidate for an ARMR patch rule. No rule exists and none is scheduled: the diff between the affected and fixed versions has not been read, and a closer look may find no hook point ARMR can act on.

CVSS

6.5 MEDIUM v3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 6.5 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N NVD Primary published
CVSS 3.1 6.5 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CISA-ADP Secondary

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.apache.solr:solr-core 9.0.0 9.3.0 unbounded

Products and versions

2 products, 2 version entries
SourceVendorProductSchemeAffected versions
nvd apache solr generic ≥ 9.0.0 and < 9.3.0
osv org.apache.solr solr-core generic ≥ 9.0.0 and < 9.3.0

References

URLTags
https://github.com/apache/solr/commit/35fc4bdc48171d9a64251c54a1e76deb558cf9d8 WEB
https://github.com/apache/lucene-solr PACKAGE
https://issues.apache.org/jira/browse/SOLR-16808 WEB
https://solr.apache.org/security.html#cve-2023-50290-apache-solr-allows-read-access-to-host-environment-variables WEB

Timeline

Published2024-01-15By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.