Secuno
ENNL
Book demo

CVE-2026-91048

Apache Karaf broken access control

9.8 CRITICALEPSS 0.54%
  1. Published29 Sept 2026

Description

The jdbc shell command scope shipped no org.apache.karaf.command.acl.jdbc.cfg. Karaf's command guard (SecuredSessionFactoryImpl) treats a command with no matching ACL rule as allowed, so any authenticated shell session (including one holding only the viewer role) could run every jdbc:* command. jdbc:ds-create stores a fully attacker-controlled JDBC URL into a pax-jdbc-config factory Configuration with no validation. pax-jdbc-config reactively turns that into a live DataSource. Several JDBC drivers run code or SQL at connection time based on URL parameters (e.g. H2 INIT=RUNSCRIPT), so a viewer-level shell user could reach arbitrary code execution, bypassing the admin-role gate that already protects shell:exec. This is a privilege-escalation-to-RCE chain, not merely an "admin misconfiguration". The same applies to jms:* shell commands.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Apache Karaf< 4.4.12

Remediation

Fixed in
Apache Karaf≥ 4.4.12

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-843158.3
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, Nginx UI…
CVE-2026-571189.8
PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.59,…
CVE-2026-1092018.3
LogicalDOC Community Edition through 9.3 contains a missing authorization vulnerability…
CVE-2026-1091858.8
jshERP through 3.6 contains a missing authorization vulnerability in the UserController…
CVE-2026-1087188.1
Rill 0.77.0 through 0.90.5 contains a missing authorization vulnerability in the admin…
CVE-2026-892838.6
The WP Posts Password Batch Manager WordPress plugin through 1.1 does not perform any…

Frequently asked

Is CVE-2026-91048 being actively exploited?

CVE-2026-91048 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.54%.

How severe is CVE-2026-91048?

CVE-2026-91048 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.54% probability of exploitation.

Which products are affected by CVE-2026-91048?

Affected products include Apache Karaf.

How do I fix CVE-2026-91048?

Upgrade affected software to a fixed version, for example Apache Karaf 4.4.12 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-91048 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.