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Fencer Intel
high 7.1

CVE-2026-84823 json

Org.wildfly.core: wildfly: path traversal in take-snapshot discloses the server configuration to the monitor role

published 27d ago modified 5d ago also EUVD-2026-102546

cvss
7.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 36%
public exploits
0
none known

Summary

A flaw was found in WildFly. A user with the `Monitor` role, which is the lowest standard Role-Based Access Control (RBAC) role, can exploit a path traversal vulnerability in the `take-snapshot` operation. By manipulating the `name` parameter, this user can write a copy of the server configuration to an arbitrary location. This allows the `Monitor` role to read back the server configuration, including sensitive credentials, which would otherwise be restricted by RBAC, leading to information disclosure.

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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-2026-84823 updated cvss 7.1

org.wildfly.core: WildFly: Path traversal in take-snapshot discloses the server configuration to the Monitor role

  • Red Hat Fuse 7 wildfly-io, wildfly-cli, wildfly-jmx, wildfly-server, wildfly-logging, wildfly-network, +31 more
    affected: workaround, no fix available
  • Red Hat JBoss Enterprise Application Platform 7 wildfly-io, wildfly-cli, wildfly-jmx, wildfly-io-bom, wildfly-server, wildfly-logging, +63 more
    affected: workaround, no fix available “Fix deferred”
  • Red Hat JBoss Enterprise Application Platform 8 wildfly-controller, wildfly-core-security
    affected: workaround, no fix available
  • Red Hat Single Sign-On 7 wildfly-io, wildfly-cli, wildfly-jmx, wildfly-server, wildfly-logging, wildfly-network, +31 more
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Enterprise Linux 8 resteasy, resteasy-javadoc Red Hat Enterprise Linux 9 resteasy, pki-resteasy-core, pki-resteasy-client, pki-resteasy-jackson2-provider, pki-resteasy-servlet-initializer
    not affected: vulnerable code not present
  • Red Hat Fuse 7 wildfly-core-security
    not affected: vulnerable code not in execute path
  • Red Hat JBoss Enterprise Application Platform 8 wildfly-io, wildfly-cli, wildfly-jmx, wildfly-io-spi, wildfly-server, wildfly-logging, +29 more
    not affected: vulnerable code not present
  • Red Hat JBoss Enterprise Application Platform Expansion Pack wildfly-io, wildfly-cli, wildfly-jmx, wildfly-io-spi, wildfly-server, wildfly-logging, +31 more
    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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
26d ago

Exploit prediction

0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Affected products

  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Fuse 7
  • Red Hat Red Hat JBoss Enterprise Application Platform 7
  • Red Hat Red Hat JBoss Enterprise Application Platform 8
  • Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack
  • Red Hat Red Hat Single Sign-On 7

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

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.