CVE-2026-44825: Hardcoded credentials in the Basic Authentication setup tool (bin/solr auth enable) in Apache Solr versions 9.

Q: How do I fix CVE-2026-44825?

solr: upgrade to newer than 9.10.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-44825 being exploited?

CVE-2026-44825 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-44825 affect?

CVE-2026-44825 affects solr. Severity is high (CVSS 8.1). 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 defaul

Q: How urgent is CVE-2026-44825?

Priority 66/100. High severity; EPSS top 10%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

This week

HIGH 8.1REMOTEWATCHLISTUPGRADE

CVE-2026-44825 is a high-severity flaw (CVSS 8.1) affecting solr. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 t

Why this priority

High severity
EPSS top 10%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	3.9% (top 10%)
CISA exploited list	No
Weakness	CWE-798, CWE-1188
Published	2026-06-01
Last modified	2026-07-22

Publisher (CNA): Apache Software Foundation · Vendor: apache

Last updated 2026-07-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-01 09:16 UTCPublished CVE record published
2026-07-22 07:10 UTCUpdated Record last modified

apache solr UPGRADE

Affected: >= 9.4.0 and <= 9.10.1 · 10.0.0

Fixed in: newer than 9.10.1

Safe to downgrade to: a release before 9.4.0

1. Check installed version

apt-cache policy solr || rpm -q solr || solr --version

2. UPGRADE to newer than 9.10.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade solr

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade solr

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 9.4.0 (Debian / Ubuntu)

apt-cache madison solr sudo apt install solr=<VERSION_BEFORE_9.4.0> sudo apt-mark hold solr

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list solr sudo dnf downgrade solr-<VERSION_BEFORE_9.4.0> sudo dnf versionlock add solr

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Exact fixes by distribution

Maven · org.apache.solr:solr-core · NO FIX YET · vulnerable: >= 9.4.0, <= 9.10.1 · source

Fedora 46 · arm-none-eabi-binutils-cs · FIXED · 2.47-1.fc46 · FEDORA-2026-7498616952 · source

sudo dnf upgrade --advisory=FEDORA-2026-7498616952

Debian 12 · lucene-solr · NOT AFFECTED

Debian 13 · lucene-solr · NOT AFFECTED

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

GitHub PoC: gagaltotal/CVE-2026-44825-Apache-Solr-Scanner (12 stars)
GitHub PoC: shinthink/solrradar (5 stars)
GitHub PoC: q0524/CVE-2026-44825_CTF (0 stars)
Nuclei scan template: Apache Solr 9.4.0-9.10.1 / 10.0.0 - Hardcoded Default Credentials

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-44825?

solr: upgrade to newer than 9.10.1. Exact commands for each OS are on this page.

Is CVE-2026-44825 being exploited?

CVE-2026-44825 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-44825 affect?

CVE-2026-44825 affects solr. Severity is high (CVSS 8.1). 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 defaul

How urgent is CVE-2026-44825?

Priority 66/100. High severity; EPSS top 10%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Apache Solr vulnerabilities

References

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