GHSA-gj52-35xm-gxjh: Duplicate Advisory Keycloak Phishing Attack Vulnerability

MODERATE
CVSS 5.4
CWE-346
Published
Advisory Summary

GHSA-gj52-35xm-gxjh is a MODERATE (CVSS 5.4) keycloak phishing attack vulnerability (CWE-346: Origin Validation Error) affecting Duplicate Advisory libraries in the Maven ecosystem. The issue involves keycloak phishing attack via email verification step in first login flow. Remediation is available by upgrading affected packages to version 26.3.0.

GHSA-gj52-35xm-gxjh at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-gj52-35xm-gxjh
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-346: Origin Validation Error
Affected Product Duplicate Advisory
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity Low (I:L)
Availability None (A:N)

How to Fix GHSA-gj52-35xm-gxjh

To remediate this vulnerability, upgrade all affected Duplicate Advisory dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.keycloak:keycloak-services fixed: 26.3.0
<dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-services</artifactId>
    <version>26.3.0</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

mvn dependency:tree -Dincludes=org.keycloak

How to Check if You Are Affected

To determine whether your Java application is affected by GHSA-gj52-35xm-gxjh, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.keycloak

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 26.3.0), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.keycloak command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-346: Origin Validation Error, where the product does not properly verify that the source of data or communication is valid. In Duplicate Advisory, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-xhpr-465j-7p9q. This link is maintained to preserve external references. ### Original Description A flaw was found in Keycloak. When an authenticated attacker attempts to merge accounts with another existing account during an identity provider (IdP) login, the attacker will subsequently be prompted to "review profile" information. This vulnerability allows the attacker to modify their email address to match that of a victim's account, triggering a verification email sent to the victim's email address. The attacker's email address is not present in the verification email content, making it a potential phishing opportunity. If the victim clicks the verification link, the attacker can gain access to the victim's account.

GHSA-gj52-35xm-gxjh Affected Duplicate Advisory Versions

1 component(s)
Fixed Versions:
26.3.0
Product / Package Ecosystem Affected Versions Fixed Version
org.keycloak:keycloak-services
Maven
< 26.3.0
26.3.0

References

Frequently Asked Questions

What is GHSA-gj52-35xm-gxjh?
GHSA-gj52-35xm-gxjh is a security vulnerability in Duplicate Advisory involving Keycloak phishing attack via email verification step in first login flow under CWE-346: Origin Validation Error.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 26.3.0 across affected packages: org.keycloak:keycloak-services.
What version fixes GHSA-gj52-35xm-gxjh?
Upgrading to 26.3.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is keycloak-services affected?
Yes, org.keycloak:keycloak-services is affected in releases prior to 26.3.0. Upgrade your dependency to 26.3.0 or later.
What is the CVSS score of GHSA-gj52-35xm-gxjh?
GHSA-gj52-35xm-gxjh has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N.
What CWE is associated with GHSA-gj52-35xm-gxjh?
GHSA-gj52-35xm-gxjh is classified under CWE-346: Origin Validation Error (The product does not properly verify that the source of data or communication is valid.).
How can I check Maven dependencies for GHSA-gj52-35xm-gxjh?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.keycloak'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-gj52-35xm-gxjh",
  "modified" : "2025-07-30T13:15:06Z",
  "published" : "2025-07-10T15:31:30Z",
  "withdrawn" : "2025-07-30T13:15:06Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: Keycloak phishing attack via email verification step in first login flow",
  "details" : "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-xhpr-465j-7p9q. This link is maintained to preserve external references.\n\n### Original Description\nA flaw was found in Keycloak. When an authenticated attacker attempts to merge accounts with another existing account during an identity provider (IdP) login, the attacker will subsequently be prompted to \"review profile\" information. This vulnerability allows the attacker to modify their email address to match that of a victim's account, triggering a verification email sent to the victim's email address. The attacker's email address is not present in the verification email content, making it a potential phishing opportunity. If the victim clicks the verification link, the attacker can gain access to the victim's account.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.keycloak:keycloak-services"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "26.3.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-7365"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/issues/40446"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/pull/40520"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:11986"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:11987"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:12015"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:12016"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2025-7365"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2378852"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/keycloak/keycloak"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/keycloak/keycloak/releases/tag/26.3.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-346" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-07-10T21:12:12Z",
    "nvd_published_at" : "2025-07-10T15:15:30Z"
  }
}