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Fencer Vulns
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 2026-10-15 24 d ago modified 2026-11-06 2 d 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.

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
23 d ago

Exploit prediction

0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).

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 Vulns 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.