Security readout for executives and security teams
Plain-English summary
Apache CXF, a widely used framework for building web services in Java applications, has a flaw that could let an attacker run their own code on the server. This only matters if untrusted users are allowed to configure JMS messaging settings. It is a follow-up patch to an earlier fix that did not fully close the hole. Apache has released updated versions.
Executive priority
High priority patch cycle. Not flagged as actively exploited, but this is the second attempt to fix an RCE-class flaw in the same component, so schedule remediation in the next planned maintenance window and treat internet-exposed CXF services as urgent.
Technical view
CVE-2026-50632 is an incomplete-fix follow-up to CVE-2026-44417 affecting the JMSConfigFactory in Apache CXF. Untrusted JMS configuration input can be abused to trigger JNDI injection leading to remote code execution (CWE-20, CWE-502). CVSS 3.1 score is 8.8 (AV:N/AC:L/PR:L/UI:N/C:H/I:H/A:H). Apache fixed the issue in CXF 4.2.2 and 4.1.7; Red Hat published errata RHSA-2026:37390.
Likely exposure
Java services and integrations that embed Apache CXF (org.apache.cxf:cxf-rt-transports-jms) and let non-administrative or external users influence JMS configuration. Applications that only allow trusted admins to configure JMS have reduced exposure, but any transitive dependency on vulnerable CXF versions warrants review.
Exploitation context
No public proof-of-concept, exploitation-in-the-wild reports, or CISA KEV listing are cited in the source bundle. The CVSS vector requires network access and low privileges but no user interaction. Because this is a re-fix of a previously disclosed JNDI/RCE issue, the underlying attack pattern is well understood and defenders should treat weaponization as plausible.
Researcher notes
This CVE is explicitly described as an incomplete fix for CVE-2026-44417, indicating the JMSConfigFactory sink still permitted attacker-controlled JNDI resolution. Root cause maps to CWE-20 (Improper Input Validation) and CWE-502 (Deserialization of Untrusted Data). Focus validation on configuration ingestion paths and any wrappers around JMSConfigFactory. Watch upstream Apache and Red Hat channels for further re-fixes, as similar advisories have chained multiple times.
Mitigation direction
- Upgrade Apache CXF to 4.2.2 or 4.1.7 (or later) across all deployments.
- Apply Red Hat errata RHSA-2026:37390 on affected Red Hat products.
- Restrict JMS configuration capabilities to trusted administrators only.
- Inventory transitive dependencies for org.apache.cxf:cxf-rt-transports-jms.
- Monitor vendor advisories for any further incomplete-fix follow-ups.
- Review network egress controls to limit outbound JNDI/LDAP lookups from app servers.
Validation and detection
- Query SBOMs and build manifests for cxf-rt-transports-jms versions below 4.2.2 or 4.1.7.
- Confirm patched CXF version is loaded at runtime, not just declared in POM.
- Verify whether any user-facing surface exposes JMS configuration inputs.
- Check Red Hat Bugzilla RHBZ#2488304 and CSAF VEX for product-specific status.
- Review logs for unexpected JNDI lookups or outbound connections from CXF services.
- Re-scan with updated vulnerability feeds after patching to confirm remediation.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-20: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-502: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-50632 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9redhat-SADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H2.25.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- ADP timelineredhat-SADP
Made public.
- CVE publishedCVE Program
The CVE record was published.
- ADP timelineredhat-SADP
Reported to Red Hat.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
- 2026-06-12T10:01:09.993Z: Reported to Red Hat.
- 2026-06-12T09:00:48.530Z: Made public.
Source materials
- CVE List V5 sourceCVE List V5
- https://lists.apache.org/thread/740ghch5z5y675cn2kzgtyo5k37n6qcwCVE reference, apache · vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-50632CVE reference, redhat-SADP · vdb-entry, x_refsource_REDHAT
- RHBZ#2488304CVE reference, redhat-SADP · issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50632.jsonCVE reference, redhat-SADP · x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:37390CVE reference, redhat-SADP · vendor-advisory, x_refsource_REDHAT
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Deserialization of Untrusted Data
Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.