CVE-2026-105208: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-xv85-7fx2-46j9
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CVSS 7.7
CWE-649
Published
Advisory Summary

CVE-2026-105208 is a HIGH (CVSS 7.7) security vulnerability vulnerability (CWE-649: Reliance on Obfuscation or Encryption of Security-Relevant Inputs without Integrity Checking) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product uses obfuscation or encryption of inputs that should not be mutable by an external actor, but the product does not use integrity checks to detect if those inputs have been modified.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-105208 at a Glance

CVE Identifier CVE-2026-105208
GHSA Identifier GHSA-xv85-7fx2-46j9
Severity HIGH
CVSS v3.1 Base Score 7.7
CWE Classification CWE-649: Reliance on Obfuscation or Encryption of Security-Relevant Inputs without Integrity Checking
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.7

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:C/C:H/I:H/A:N).

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

How to Fix CVE-2026-105208

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

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

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-105208, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

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

Note: The mvn dependency:tree 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-649: Reliance on Obfuscation or Encryption of Security-Relevant Inputs without Integrity Checking, where the product uses obfuscation or encryption of inputs that should not be mutable by an external actor, but the product does not use integrity checks to detect if those inputs have been modified. In Software, 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

ZITADEL 4.x before 4.17.3 and 3.x through 3.4.15 protects IdP intent tokens with unauthenticated, malleable encryption, allowing authenticated users to tamper with their own token so it is accepted for another user's external login intent. An attacker who predicts a victim's in-flight intent identifier and wins a timing race can call /v2/idp_intents or /v2/sessions to steal the victim's IdP tokens or hijack their session.

References

GitHub Advisory / Wiki ADVISORY
https://github.com/zitadel/zitadel/security/advisories/GHSA-jh3m-cr2x-qp88
NVD — CVE-2026-105208 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-105208
www.vulncheck.com/advisories/zitadel-... WEB
https://www.vulncheck.com/advisories/zitadel-before-4.17.3-session-hijacking-via-forgeable-idp-intent-tokens

Frequently Asked Questions

What is CVE-2026-105208?
CVE-2026-105208 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-649: Reliance on Obfuscation or Encryption of Security-Relevant Inputs without Integrity Checking.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-105208?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-105208?
CVE-2026-105208 has a CVSS v3.1 base score of 7.7 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N.
What CWE is associated with CVE-2026-105208?
CVE-2026-105208 is classified under CWE-649: Reliance on Obfuscation or Encryption of Security-Relevant Inputs without Integrity Checking (The product uses obfuscation or encryption of inputs that should not be mutable by an external actor, but the product does not use integrity checks to detect if those inputs have been modified.).
How can I check Maven dependencies for CVE-2026-105208?
Run the dependency tree command: 'mvn dependency:tree'. 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
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xv85-7fx2-46j9",
  "modified" : "2026-10-04T15:30:23Z",
  "published" : "2026-10-04T15:30:23Z",
  "aliases" : [ "CVE-2026-105208" ],
  "details" : "ZITADEL 4.x before 4.17.3 and 3.x through 3.4.15 protects IdP intent tokens with unauthenticated, malleable encryption, allowing authenticated users to tamper with their own token so it is accepted for another user's external login intent. An attacker who predicts a victim's in-flight intent identifier and wins a timing race can call /v2/idp_intents or /v2/sessions to steal the victim's IdP tokens or hijack their session.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/zitadel/zitadel/security/advisories/GHSA-jh3m-cr2x-qp88"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-105208"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/zitadel-before-4.17.3-session-hijacking-via-forgeable-idp-intent-tokens"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-649" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-04T15:16:31Z"
  }
}