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CVE-2026-44825

43
FAUCET Score

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

First published: Jun 1, 2026Last modified: Jun 1, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 9.4.0, <= 9.10.1CPE matchmatch criteria
cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*
10.0.0CPE matchmatch criteria
cpe:2.3:a:apache:solr:10.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.57%
Probability of exploitation in next 30 days
EPSS Percentile
43.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0057 is in the 24th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

apachevendor investigatingvia vendor_rss
View patch

Vendor Advisories (2)

mavenGHSA-qhr7-h655-pw6rhigh

Apache Solr has hardcoded credentials in the Basic Authentication setup tool

Jun 1, 2026
apacheapache:www.mail-archive.com/[email protected]/msg11159.html

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

May 29, 2026

References

openwall.com / lists/oss-security/2026/05/29/6
Mailing ListThird Party Advisory
lists.apache.org / thread/5xg6xr99glocp3zsg9ht2zlbwlrst7ch
Mailing ListVendor Advisory