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High

Apache CXF JMS transport incomplete fix leading to RCE

IdentifiersCVE-2026-44417CWE-94

CVE-2026-44417 is a moderate-severity vulnerability in Apache CXF's JMS transport component (org.apache.cxf:cxf-rt-transports-jms). It is described as an incomplete fix for CVE-2025-48913, where the original remediation for untrusted JMS configuration did not cover all reachable code paths. As a result, another path in the code can still lead to code execution capabilities when untrusted users are permitted to configure JMS for Apache CXF. The issue affects Apache CXF 4.2.0 before 4.2.1, 4.1.x before 4.1.6, and 3.6.x before 3.6.11, according to the provided advisory content.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can result in remote code execution or equivalent code execution capabilities within the Apache CXF environment. In practical terms, this can allow an attacker who can influence JMS configuration to execute arbitrary code in the context of the affected application or service, potentially leading to full compromise of the service, unauthorized access to data, lateral movement, or further post-exploitation activity depending on the privileges of the CXF process and surrounding environment.

Mitigation

If you can’t patch tonight, do this now.

Do not allow untrusted users to configure JMS settings in Apache CXF. Restrict access to JMS-related configuration to trusted administrators and trusted deployment pipelines only. Where immediate patching is not possible, isolate affected CXF services, reduce exposure of administrative/configuration interfaces, and review whether JMS transport is enabled or necessary in the environment.

Remediation

Patch, then assume compromise.

Upgrade Apache CXF to a fixed release. Based on the provided content for CVE-2026-44417, the recommended fixed versions are 4.2.1, 4.1.6, or 3.6.11. Apply the vendor-provided updates across affected branches and ensure the cxf-rt-transports-jms component is updated consistently with the rest of the deployment.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Apache Software FoundationCxfapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

9 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity8

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-44417
NVD
nvd.nist.gov/vuln/detail/CVE-2026-44417
MITRE CWE · CWE-94
cwe.mitre.org
Vendor Advisory
lists.apache.org/thread/bqg6gjy2cx7rfyqjxcpv3jwjvmclvz4o