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CVE-2026-91048— Apache Karaf: Missing authorization on the jdbc:* shell command scope allows privilege escalation to remote code execution via jdbc:ds-create

Quick assessment

Affected
Apache Software Foundation Apache Karaf
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

随附的 JDBC shell 命令作用域未包含 ACL 规则文件。Karaf 的命令守卫机制（ ）将未匹配到任何 ACL 规则的命令视为允许执行。因此，任何已认证的 shell 会话（即使仅持有 角色）都可以执行所有 命令。 命令会将完全由攻击者控制的 JDBC URL 存储到 工厂配置中，且未进行任何验证。 会响应式地将该配置转换为一个活跃的数据源（DataSource）。由于某些 JDBC 驱动程序会在连接时根据 URL 参数执行代码或 SQL（例如 H2 的 参数），因此持有 权限的 shell 用户可以实现

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I. Basic Information for CVE-2026-91048

Vulnerability Information
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Vulnerability Title
Apache Karaf: Missing authorization on the jdbc:* shell command scope allows privilege escalation to remote code execution via jdbc:ds-create
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Karaf 0 ~ 4.4.12 -

II. Public POCs for CVE-2026-91048

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III. Intelligence Information for CVE-2026-91048

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Mailing List Discussions for CVE-2026-91048 (1)

Same Patch Batch · Apache Software Foundation · 2026-09-29 · 19 CVEs total

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IV. Related Vulnerabilities

Same product: Apache Karaf
Same vendor: Apache Software Foundation
Same weakness: CWE-862

V. Comments for CVE-2026-91048

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