Vulnerability-Lookup

CVE-2026-15564 (GCVE-0-2026-15564)

Vulnerability from cvelistv5 – Published: 2026-10-29 06:07 – Updated: 2026-10-29 06:07

Title

Wildfly-ejb: wildfly-iiop-openjdk: eap iiop listeners may permit unauthed deserialization

Summary

Wildfly's IIOP listener may permit deserialization of input streams before authentication is performed. An attacker who can gain access to the IIOP port may be able to construct and send malicious objects and achieve deserialization, if the target EJB allows untyped method parameters, and depending on the potential gadget chains available in the running classpath.

Severity

7.4 (High)


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

CWE

CWE-829 - Inclusion of Functionality from Untrusted Control Sphere

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1055 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-15564	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2478005	issue-trackingx_refsource_REDHAT

Impacted products

2 products

Vendor	Product	Version	CPE status
Red Hat	Red Hat JBoss Enterprise Application Platform 7	cpe:/a:redhat:jboss_enterprise_application_platform:7
Red Hat	Red Hat JBoss Enterprise Application Platform 8	cpe:/a:redhat:jboss_enterprise_application_platform:8

Date Public

2026-10-27 00:00

Show details on NVD website

JSON

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          "cpes": [
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          "packageName": "wildfly-ejb3",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
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          "cpes": [
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      "title": "Wildfly-ejb: wildfly-iiop-openjdk: eap iiop listeners may permit unauthed deserialization",
      "workarounds": [
        {
          "lang": "en",
          "value": "Restrict network reachability to the IIOP listener (default TCP port 3528) so that only localhost or authorized management networks can access it.\n\n1. Restrict port exposure using firewalld:\n```bash\nfirewall-cmd --permanent --remove-port=3528/tcp\nfirewall-cmd --reload\n```\n\n2. If CORBA/IIOP interoperability is not required by deployed applications, remove the IIOP subsystem using the JBoss Management CLI:\n```bash\njboss-cli.sh --connect --command=\"/subsystem=iiop-openjdk:remove\"\n```\n\nCaveats:\nRemoving the IIOP subsystem will break remote EJB invocations or external services that rely on CORBA/IIOP protocols.\n\nWarning:\nApplying firewall changes or removing server subsystems will disrupt active client connections and requires reloading the server configuration or restarting the JBoss EAP service to take full effect."
        }
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GHSA-89HX-FMWJ-CWW5

Vulnerability from github – Published: 2026-10-29 06:30 – Updated: 2026-10-29 06:30

Details

Severity

7.4 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-15564"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-829"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-29T06:17:20Z",
    "severity": "HIGH"
  },
  "details": "Wildfly\u0027s IIOP listener may permit deserialization of input streams before authentication is performed. An attacker who can gain access to the IIOP port may be able to construct and send malicious objects and achieve deserialization, if the target EJB allows untyped method parameters, and depending on the potential gadget chains available in the running classpath.",
  "id": "GHSA-89hx-fmwj-cww5",
  "modified": "2026-10-29T06:30:38Z",
  "published": "2026-10-29T06:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15564"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-15564"
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2478005"
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      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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