CVE-2026-110593: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-j2m5-qh4m-hfjr
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CVSS 5.4
CWE-1336
Published
Advisory Summary

CVE-2026-110593 is a MODERATE (CVSS 5.4) security vulnerability vulnerability (CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-110593 at a Glance

CVE Identifier CVE-2026-110593
GHSA Identifier GHSA-j2m5-qh4m-hfjr
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine
Affected Product Software
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:L/PR:L/UI:N/S:U/C:L/I:N/A:L).

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

How to Fix CVE-2026-110593

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-2026-110593, 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-1336: Improper Neutralization of Special Elements Used in a Template Engine, where the product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine. 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

BottleCRM through 1.14.5 contains a server-side template injection vulnerability in the send_email Celery task, which compiles the user-supplied AccountEmail message_body with django.template.Template(). Authenticated organization members can submit template tags through POST /api/accounts/<id>/create_mail/ to disclose the rendering context and loaded Python modules, or block the shared Celery worker with nested loops.

References

NVD — CVE-2026-110593 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-110593
Software Source Repository REPOSITORY
https://github.com/Django-CRM/Django-CRM/issues/826
Software Source Repository REPOSITORY
https://github.com/Django-CRM/Django-CRM/blob/v1.14.5/backend/accounts/tasks.py#L45
Software Source Repository REPOSITORY
https://github.com/aaronamran/CVE-Disclosures/tree/main/CVE-2026/CVE-2026-110593
www.vulncheck.com/advisories/bottlecr... WEB
https://www.vulncheck.com/advisories/bottlecrm-through-1.14.5-server-side-template-injection-via-account-email-create-mail

Frequently Asked Questions

What is CVE-2026-110593?
CVE-2026-110593 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-110593?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-110593?
CVE-2026-110593 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L.
What CWE is associated with CVE-2026-110593?
CVE-2026-110593 is classified under CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine (The product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine.).
How can I check Maven dependencies for CVE-2026-110593?
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-j2m5-qh4m-hfjr",
  "modified" : "2026-10-16T12:31:21Z",
  "published" : "2026-10-14T15:32:23Z",
  "aliases" : [ "CVE-2026-110593" ],
  "details" : "BottleCRM through 1.14.5 contains a server-side template injection vulnerability in the send_email Celery task, which compiles the user-supplied AccountEmail message_body with django.template.Template(). Authenticated organization members can submit template tags through POST /api/accounts/<id>/create_mail/ to disclose the rendering context and loaded Python modules, or block the shared Celery worker with nested loops.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/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" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-110593"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Django-CRM/Django-CRM/issues/826"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Django-CRM/Django-CRM/blob/v1.14.5/backend/accounts/tasks.py#L45"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/aaronamran/CVE-Disclosures/tree/main/CVE-2026/CVE-2026-110593"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/bottlecrm-through-1.14.5-server-side-template-injection-via-account-email-create-mail"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1336" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-14T15:17:10Z"
  }
}