CVE-2026-93450: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-j354-7hcm-wg69
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CVSS 7.5
CWE-674
Published
Advisory Summary

CVE-2026-93450 is a HIGH (CVSS 7.5) security vulnerability vulnerability (CWE-674: Uncontrolled Recursion) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-93450 at a Glance

CVE Identifier CVE-2026-93450
GHSA Identifier GHSA-j354-7hcm-wg69
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-674: Uncontrolled Recursion
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

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

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

How to Fix CVE-2026-93450

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-2026-93450, 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-674: Uncontrolled Recursion, where the product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. 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

go-openapi/swag jsonutils before 0.27.1 contains a stack overflow vulnerability in ordered JSON parsing and serialization due to unbounded recursion with no depth limit. Remote unauthenticated attackers can submit deeply nested JSON documents to services accepting OpenAPI specifications, causing fatal stack overflow that terminates the process and all in-flight requests.

References

GitHub Advisory / Wiki ADVISORY
https://github.com/go-openapi/swag/security/advisories/GHSA-xh24-9qpg-8w28
NVD — CVE-2026-93450 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-93450
Security Fix Commit FIX COMMIT
https://github.com/go-openapi/swag/commit/0c24346ced59a25811e8694a915e7131d25ccb0e
Software Source Repository REPOSITORY
https://github.com/go-openapi/swag
Software Source Repository REPOSITORY
https://github.com/go-openapi/swag/blob/v0.27.0/jsonutils/adapters/stdlib/json/adapter.go#L68
Software Source Repository REPOSITORY
https://github.com/go-openapi/swag/blob/v0.27.0/jsonutils/adapters/stdlib/json/ordered_map.go#L214
www.vulncheck.com/advisories/go-opena... WEB
https://www.vulncheck.com/advisories/go-openapi-swag-jsonutils-before-0.27.1-uncontrolled-recursion-in-ordered-json-marshal-and-unmarshal

Frequently Asked Questions

What is CVE-2026-93450?
CVE-2026-93450 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-674: Uncontrolled Recursion.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-93450?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-93450?
CVE-2026-93450 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-93450?
CVE-2026-93450 is classified under CWE-674: Uncontrolled Recursion (The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.).
How can I check Maven dependencies for CVE-2026-93450?
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-j354-7hcm-wg69",
  "modified" : "2026-09-18T00:31:11Z",
  "published" : "2026-09-18T00:31:11Z",
  "aliases" : [ "CVE-2026-93450" ],
  "details" : "go-openapi/swag jsonutils before 0.27.1 contains a stack overflow vulnerability in ordered JSON parsing and serialization due to unbounded recursion with no depth limit. Remote unauthenticated attackers can submit deeply nested JSON documents to services accepting OpenAPI specifications, causing fatal stack overflow that terminates the process and all in-flight requests.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/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/go-openapi/swag/security/advisories/GHSA-xh24-9qpg-8w28"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-93450"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-openapi/swag/commit/0c24346ced59a25811e8694a915e7131d25ccb0e"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-openapi/swag"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-openapi/swag/blob/v0.27.0/jsonutils/adapters/stdlib/json/adapter.go#L68"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-openapi/swag/blob/v0.27.0/jsonutils/adapters/stdlib/json/ordered_map.go#L214"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/go-openapi-swag-jsonutils-before-0.27.1-uncontrolled-recursion-in-ordered-json-marshal-and-unmarshal"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-674" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-18T00:17:49Z"
  }
}