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CVE-2023-50298 Apache Solr

Affected softwareApache Solr
Severity7.5 High CVSS 3.1 2 scores
Fixed in9.4.1, 8.11.3
WeaknessInformation exposure (CWE-200)
Published9 Feb 2024
Updated17 Jun 2026

Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Solr.This issue affects Apache Solr: from 6.0.0 through 8.11.2, from 9.0.0 before 9.4.1. Solr Streaming Expressions allows users to extract data from other Solr Clouds, using a "zkHost" parameter. When original SolrCloud is setup to use ZooKeeper credentials and ACLs, they will be sent to whatever "zkHost" the user provides. An attacker could setup a server to mock ZooKeeper, that accepts ZooKeeper requests with credentials and ACLs and extracts the sensitive information, then send a streaming expression using the mock server's address in "zkHost". Streaming Expressions are exposed via the "/streaming" handler, with "read" permissions. Users are recommended to upgrade to version 8.11.3 or 9.4.1, which fix the issue. From these versions on, only zkHost values that have the same server address (regardless of chroot), will use the given ZooKeeper credentials and ACLs when connecting.

CWE-922

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 2 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 1.6% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists: apache/lucene-solr 61c956c.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all
Finding This CVE is not listed in CISA KEV or VulnCheck KEV, CISA Vulnrichment records no active exploitation, no reviewed exploit catalogue carries an entry for it, and no GitHub PoC repository for it has 5 or more stars. Nobody has published exploit code worth tracing, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.

CVSS

7.5 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:N/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 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N NVD Primary published
CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CISA-ADP Secondary

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update April 2024 ↗ CPU 2024-Q2 Oracle Construction and Engineering / Document Management (Apache Solr) (19.12.0-19.12.16, 20.12.0-20.12.16, 21.12.0-21.12.17, 22.12.0-22.12.12, 23.12.0-23.12.3)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Construction and Engineering Document Management (Apache Solr) 19.12.0-19.12.16, 20.12.0-20.12.16, 21.12.0-21.12.17, 22.12.0-22.12.12, 23.12.0-23.12.3

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.apache.solr:solr-solrj-streaming 9.0.0 9.4.1 unbounded
org.apache.solr:solr-solrj-streaming 6.0.0 8.11.3 unbounded
org.apache.solr:solr-solrj 9.0.0 9.4.1 unbounded
org.apache.solr:solr-solrj 6.0.0 8.11.3 unbounded

Products and versions

3 products, 6 version entries
SourceVendorProductSchemeAffected versions
nvd apache solr generic ≥ 6.0.0 and < 8.11.3 · ≥ 9.0.0 and < 9.4.1
osv org.apache.solr solr-solrj generic ≥ 6.0.0 and < 8.11.3 · ≥ 9.0.0 and < 9.4.1
osv org.apache.solr solr-solrj-streaming generic ≥ 6.0.0 and < 8.11.3 · ≥ 9.0.0 and < 9.4.1

References

URLTags
https://github.com/apache/lucene-solr/commit/61c956c426b2cfb85ccef55d1afca4335eacd269 WEB
https://github.com/apache/solr/commit/e2bf1f434aad873fbb24c21d46ac00e888806d98 WEB
https://github.com/apache/solr PACKAGE
https://issues.apache.org/jira/browse/SOLR-17098 WEB
https://solr.apache.org/security.html#cve-2023-50298-apache-solr-can-expose-zookeeper-credentials-via-streaming-expressions WEB
http://www.openwall.com/lists/oss-security/2024/02/09/2 WEB
http://www.openwall.com/lists/oss-security/2024/02/09/3 WEB

Timeline

Published2024-02-09By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.