CVE-2026-25125: October/rain October Rain Has Environment Variable Vulnerability

MODERATE
Advisory Identifier: GHSA-g6v3-wv4j-x9hg
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CVSS 4.9
CWE-94 CWE-200
Published
Advisory Summary

CVE-2026-25125 is a MODERATE (CVSS 4.9) october rain has environment variable vulnerability (CWE-94: Improper Control of Generation of Code ('Code Injection')) affecting October/rain libraries in the Packagist ecosystem. The issue involves october rain has environment variable exfiltration via ini parser interpolation. Remediation is available by upgrading affected packages to version 4.1.10, 3.7.14.

CVE-2026-25125 at a Glance

CVE Identifier CVE-2026-25125
GHSA Identifier GHSA-g6v3-wv4j-x9hg
Severity MODERATE
CVSS v3.1 Base Score 4.9
CWE Classification CWE-94: Improper Control of Generation of Code ('Code Injection')
Affected Product October/rain
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 4.9

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

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

How to Fix CVE-2026-25125

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

october/rain fixed: 4.1.10 
Upgrade october/rain to 4.1.10
october/rain fixed: 3.7.14 
Upgrade october/rain to 3.7.14
Verify Direct and Transitive Dependencies

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

inspect dependencies for october/rain

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-25125, inspect your project dependencies for October/rain:

inspect dependencies for october/rain

Analyze the terminal output to locate any version of October/rain in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.1.10), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-94: Improper Control of Generation of Code ('Code Injection'), where the product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. In October/rain, 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

A server-side information disclosure vulnerability was identified in the INI settings parser. PHP's `parse_ini_string()` function supports `${}` syntax for environment variable interpolation. Attackers with Editor access could inject `${APP_KEY}`, `${DB_PASSWORD}`, or similar patterns into CMS page settings fields, causing sensitive environment variables to be resolved and stored in the template. These values were then returned to the attacker when the page was reopened. ### Impact - Exfiltration of sensitive environment variables (APP_KEY, DB credentials, AWS keys, etc.) - Could enable further attacks: database access, cookie forgery, AWS resource access - Requires authenticated backend access with Editor permissions - Only relevant when `cms.safe_mode` is enabled (otherwise direct PHP injection is already possible) ### Patches The vulnerability has been patched in v3.7.14 and v4.1.10. All users are encouraged to upgrade to the latest patched version. ### Workarounds If upgrading immediately is not possible: - Restrict Editor tool access to fully trusted administrators only - Ensure database and cloud service credentials are not accessible from the web server's network ### References - Reported by Pentest-Tools.com

CVE-2026-25125 Affected October/rain Versions

2 component(s)
Fixed Versions:
4.1.103.7.14
Product / Package Ecosystem Affected Versions Fixed Version
october/rain
 Packagist
≥ 4.0.0
< 4.1.10
4.1.10
october/rain
 Packagist
< 3.7.14
3.7.14

References

GitHub Advisory / Wiki ADVISORY
https://github.com/octobercms/october/security/advisories/GHSA-g6v3-wv4j-x9hg
NVD — CVE-2026-25125 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-25125
October/rain Source Repository REPOSITORY
https://github.com/octobercms/october

Frequently Asked Questions

What is CVE-2026-25125?
CVE-2026-25125 is a security vulnerability in October/rain involving October Rain has Environment Variable Exfiltration via INI Parser Interpolation under CWE-94: Improper Control of Generation of Code ('Code Injection').
Which October/rain versions are affected?
Affected versions include releases prior to 4.1.10, 3.7.14 across affected packages: october/rain.
What version fixes CVE-2026-25125?
Upgrading to 4.1.10, 3.7.14 (or the latest patched release for your respective branch) resolves the vulnerability.
Is october/rain affected?
Yes, october/rain is affected in releases prior to 4.1.10, 3.7.14. Upgrade your dependency to 4.1.10, 3.7.14 or later.
What is the CVSS score of CVE-2026-25125?
CVE-2026-25125 has a CVSS v3.1 base score of 4.9 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2026-25125?
CVE-2026-25125 is classified under CWE-94: Improper Control of Generation of Code ('Code Injection') (The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.).
How can I check Packagist dependencies for CVE-2026-25125?
Run the dependency tree command: 'inspect dependencies for october/rain'. 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-g6v3-wv4j-x9hg",
  "modified" : "2026-05-08T20:41:58Z",
  "published" : "2026-04-14T22:29:41Z",
  "aliases" : [ "CVE-2026-25125" ],
  "summary" : "October Rain has Environment Variable Exfiltration via INI Parser Interpolation",
  "details" : "A server-side information disclosure vulnerability was identified in the INI settings parser. PHP's `parse_ini_string()` function supports `${}` syntax for environment variable interpolation. Attackers with Editor access could inject `${APP_KEY}`, `${DB_PASSWORD}`, or similar patterns into CMS page settings fields, causing sensitive environment variables to be resolved and stored in the template. These values were then returned to the attacker when the page was reopened.\n\n### Impact\n- Exfiltration of sensitive environment variables (APP_KEY, DB credentials, AWS keys, etc.)\n- Could enable further attacks: database access, cookie forgery, AWS resource access\n- Requires authenticated backend access with Editor permissions\n- Only relevant when `cms.safe_mode` is enabled (otherwise direct PHP injection is already possible)\n\n### Patches\nThe vulnerability has been patched in v3.7.14 and v4.1.10. All users are encouraged to upgrade to the latest patched version.\n\n### Workarounds\nIf upgrading immediately is not possible:\n- Restrict Editor tool access to fully trusted administrators only\n- Ensure database and cloud service credentials are not accessible from the web server's network\n\n### References\n- Reported by Pentest-Tools.com",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "october/rain"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0"
      }, {
        "fixed" : "4.1.10"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 4.1.9"
    }
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "october/rain"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.7.14"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.7.13"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/octobercms/october/security/advisories/GHSA-g6v3-wv4j-x9hg"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-25125"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/octobercms/october"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-94" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-14T22:29:41Z",
    "nvd_published_at" : "2026-04-14T21:16:25Z"
  }
}