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Fencer Intel
high 8.8

CVE-2026-12977 json

Org.wildfly.core/wildfly-server: wildfly: rbac bypass in wildfly deployment-operation handlers leads to privilege escalation

published 2d ago modified 14h ago also EUVD-2026-120230

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits
0
none known

Summary

A flaw was found in the deployment-operation family of WildFly Core. Certain handlers, such as upload-deployment-url, lack proper sensitivity classification, allowing an administrator with the restricted "Maintainer" role to read sensitive configuration files. This can lead to the exfiltration of credentials and full administrative control (SuperUser) of the server.

Patch / fix

  • Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 0:1.86.0-1.redhat_00001.1.el10eap, 0:2.1.1-1.Final_redhat_00001.1.el10eap, 0:2.1.5-1.Final_redhat_00001.1.el10eap, 0:2.3.3-1.redhat_00001.1.el10eap, 0:2.18.11-1.redhat_00001.1.el10eap, 0:2.20.0-1.redhat_00002.1.el10eap, 0:3.1.1-1.Final_redhat_00001.1.el10eap, 0:3.2.4-1.redhat_00001.1.el10eap, 0:8.1.1-15.GA_redhat_00052.1.el10eap, 0:8.1.9.1-1.GA_redhat_00006.1.el10eap, 0:801.9.1-1.GA_redhat_00002.1.el10eap
  • Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 0:1.86.0-1.redhat_00001.1.el8eap, 0:2.1.1-1.Final_redhat_00001.1.el8eap, 0:2.1.5-1.Final_redhat_00001.1.el8eap, 0:2.3.3-1.redhat_00001.1.el8eap, 0:2.18.11-1.redhat_00001.1.el8eap, 0:2.20.0-1.redhat_00002.1.el8eap, 0:3.1.1-1.Final_redhat_00001.1.el8eap, 0:3.2.4-1.redhat_00001.1.el8eap, 0:8.1.1-15.GA_redhat_00052.1.el8eap, 0:8.1.9.1-1.GA_redhat_00006.1.el8eap, 0:801.9.1-1.GA_redhat_00002.1.el8eap
  • Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 0:1.86.0-1.redhat_00001.1.el9eap, 0:2.1.1-1.Final_redhat_00001.1.el9eap, 0:2.1.5-1.Final_redhat_00001.1.el9eap, 0:2.3.3-1.redhat_00001.1.el9eap, 0:2.18.11-1.redhat_00001.1.el9eap, 0:2.20.0-1.redhat_00002.1.el9eap, 0:3.1.1-1.Final_redhat_00001.1.el9eap, 0:3.2.4-1.redhat_00001.1.el9eap, 0:8.1.1-15.GA_redhat_00052.1.el9eap, 0:8.1.9.1-1.GA_redhat_00006.1.el9eap, 0:801.9.1-1.GA_redhat_00002.1.el9eap

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-12977 updated cvss 8.8

org.wildfly.core/wildfly-server: wildfly: RBAC bypass in WildFly deployment-operation handlers leads to privilege escalation

  • Red Hat Fuse 7 wildfly-server
    affected: workaround, no fix available
  • Red Hat JBoss Enterprise Application Platform 7 wildfly-server
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Single Sign-On 7 wildfly-server
    affected: workaround, no fix planned “Will not fix”
  • Red Hat JBoss EAP 8.1 for RHEL 8 eap8-neethi 3.2.4-1.redhat_00001.1.el8eap, eap8-apache-sshd 2.20.0-1.redhat_00002.1.el8eap, eap8-wildfly 8.1.9.1-1.GA_redhat_00006.1.el8eap, eap8-bouncycastle 1.86.0-1.redhat_00001.1.el8eap, eap8-bouncycastle-pg 1.86.0-1.redhat_00001.1.el8eap, eap8-ironjacamar 3.1.1-1.Final_redhat_00001.1.el8eap, +33 more Red Hat JBoss EAP 8.1 for RHEL 9 eap8-neethi 3.2.4-1.redhat_00001.1.el9eap, eap8-apache-sshd 2.20.0-1.redhat_00002.1.el9eap, eap8-wildfly 8.1.9.1-1.GA_redhat_00006.1.el9eap, eap8-bouncycastle 1.86.0-1.redhat_00001.1.el9eap, eap8-bouncycastle-pg 1.86.0-1.redhat_00001.1.el9eap, eap8-ironjacamar 3.1.1-1.Final_redhat_00001.1.el9eap, +33 more Red Hat JBoss EAP 8.1 for RHEL 10 eap8-neethi 3.2.4-1.redhat_00001.1.el10eap, eap8-apache-sshd 2.20.0-1.redhat_00002.1.el10eap, eap8-wildfly 8.1.9.1-1.GA_redhat_00006.1.el10eap, eap8-bouncycastle 1.86.0-1.redhat_00001.1.el10eap, eap8-bouncycastle-pg 1.86.0-1.redhat_00001.1.el10eap, eap8-ironjacamar 3.1.1-1.Final_redhat_00001.1.el10eap, +32 more
    fixed: vendor fix RHSA-2026:99018
  • Red Hat JBoss Enterprise Application Platform 8.1
    fixed: vendor fix RHSA-2026:99017
  • Red Hat JBoss Enterprise Application Platform Expansion Pack wildfly-server
    not affected: component not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Red Hat Red Hat JBoss Enterprise Application Platform 8.1
  • Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10
  • Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
  • Red Hat Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
  • Red Hat Red Hat Fuse 7
  • Red Hat Red Hat JBoss Enterprise Application Platform 7
  • Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack
  • Red Hat Red Hat Single Sign-On 7

Classification

Weakness
  • CWE-267 Privilege Defined With Unsafe Actions

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.