# CVE-2026-12977: Org.wildfly.core/wildfly-server: wildfly: rbac bypass in wildfly deployment-operation handlers leads to privilege escalation

Status: published. Published: 2026-11-09. Updated: 2026-11-11.

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.

## Remediation

- workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. (source: CNA: redhat)

## Affected products and versions

- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 (wildfly-server): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 (eap8-apache-sshd): ≥ 0:2.20.0-1.redhat_00002.1.el10eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 (eap8-bouncycastle): ≥ 0:1.86.0-1.redhat_00001.1.el10eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 (eap8-eap-product-conf-parent): ≥ 0:801.9.1-1.GA_redhat_00002.1.el10eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 (eap8-ironjacamar): ≥ 0:3.1.1-1.Final_redhat_00001.1.el10eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 (eap8-jackson-jaxrs-providers): ≥ 0:2.18.11-1.redhat_00001.1.el10eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 (eap8-jackson-modules-base): ≥ 0:2.18.11-1.redhat_00001.1.el10eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 (eap8-jackson-modules-java8): ≥ 0:2.18.11-1.redhat_00001.1.el10eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 (eap8-mod_cluster): ≥ 0:2.1.1-1.Final_redhat_00001.1.el10eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 (eap8-neethi): ≥ 0:3.2.4-1.redhat_00001.1.el10eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 (eap8-wildfly): ≥ 0:8.1.9.1-1.GA_redhat_00006.1.el10eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 (eap8-wildfly-http-client): ≥ 0:2.1.5-1.Final_redhat_00001.1.el10eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 (eap8-wildfly-javadocs): ≥ 0:8.1.1-15.GA_redhat_00052.1.el10eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 (eap8-ws-commons-XmlSchema): ≥ 0:2.3.3-1.redhat_00001.1.el10eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 (eap8-apache-sshd): ≥ 0:2.20.0-1.redhat_00002.1.el8eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 (eap8-bouncycastle): ≥ 0:1.86.0-1.redhat_00001.1.el8eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 (eap8-eap-product-conf-parent): ≥ 0:801.9.1-1.GA_redhat_00002.1.el8eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 (eap8-ironjacamar): ≥ 0:3.1.1-1.Final_redhat_00001.1.el8eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 (eap8-jackson-jaxrs-providers): ≥ 0:2.18.11-1.redhat_00001.1.el8eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 (eap8-jackson-modules-base): ≥ 0:2.18.11-1.redhat_00001.1.el8eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 (eap8-jackson-modules-java8): ≥ 0:2.18.11-1.redhat_00001.1.el8eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 (eap8-mod_cluster): ≥ 0:2.1.1-1.Final_redhat_00001.1.el8eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 (eap8-neethi): ≥ 0:3.2.4-1.redhat_00001.1.el8eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 (eap8-wildfly): ≥ 0:8.1.9.1-1.GA_redhat_00006.1.el8eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 (eap8-wildfly-http-client): ≥ 0:2.1.5-1.Final_redhat_00001.1.el8eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 (eap8-wildfly-javadocs): ≥ 0:8.1.1-15.GA_redhat_00052.1.el8eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 (eap8-ws-commons-XmlSchema): ≥ 0:2.3.3-1.redhat_00001.1.el8eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 (eap8-apache-sshd): ≥ 0:2.20.0-1.redhat_00002.1.el9eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 (eap8-bouncycastle): ≥ 0:1.86.0-1.redhat_00001.1.el9eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 (eap8-eap-product-conf-parent): ≥ 0:801.9.1-1.GA_redhat_00002.1.el9eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 (eap8-ironjacamar): ≥ 0:3.1.1-1.Final_redhat_00001.1.el9eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 (eap8-jackson-jaxrs-providers): ≥ 0:2.18.11-1.redhat_00001.1.el9eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 (eap8-jackson-modules-base): ≥ 0:2.18.11-1.redhat_00001.1.el9eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 (eap8-jackson-modules-java8): ≥ 0:2.18.11-1.redhat_00001.1.el9eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 (eap8-mod_cluster): ≥ 0:2.1.1-1.Final_redhat_00001.1.el9eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 (eap8-neethi): ≥ 0:3.2.4-1.redhat_00001.1.el9eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 (eap8-wildfly): ≥ 0:8.1.9.1-1.GA_redhat_00006.1.el9eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 (eap8-wildfly-http-client): ≥ 0:2.1.5-1.Final_redhat_00001.1.el9eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 (eap8-wildfly-javadocs): ≥ 0:8.1.1-15.GA_redhat_00052.1.el9eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 (eap8-ws-commons-XmlSchema): ≥ 0:2.3.3-1.redhat_00001.1.el9eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Fuse 7 (wildfly-server): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7 (wildfly-server): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform Expansion Pack (wildfly-server): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Single Sign-On 7 (wildfly-server): Version range not reported. Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; source: CNA: redhat

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; source: NVD: secalert@redhat.com

- CISA KEV: No listing in collected sources

- EPSS: 0.25% as of 2026-11-10; percentile 15.95%

- SSVC: Not available

- Weaknesses: CWE-267

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHSA-2026:99017 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:99018 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2026-12977 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2491669 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2026-12977 (secalert@redhat.com)

- https://bugzilla.redhat.com/show_bug.cgi?id=2491669 (secalert@redhat.com)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2026-12977; retrieved 2026-11-11; source updated 2026-11-11

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-12977; retrieved 2026-11-10; source updated 2026-11-09

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-12977; retrieved 2026-11-11; source updated Not reported

Revision: 0829f339690c44773cba8e70e6a0a7065e7969456c8eebbf459e9ce796e6206d

Canonical: https://y2.dev/cve/CVE-2026-12977

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