CVE-2025-58759: TinyEnv Inline Comments Not Stripped Properly Vulnerability

MODERATE
Advisory Identifier: GHSA-72cm-7236-h43r
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CVSS 5.1
CWE-20
Published
Advisory Summary

CVE-2025-58759 is a MODERATE (CVSS 5.1) inline comments not stripped properly vulnerability (CWE-20: Improper Input Validation) affecting TinyEnv libraries in the Packagist ecosystem. The issue involves inline comments not stripped properly in .env values. Remediation is available by upgrading affected packages to version 1.0.11.

CVE-2025-58759 at a Glance

CVE Identifier CVE-2025-58759
GHSA Identifier GHSA-72cm-7236-h43r
Severity MODERATE
CVSS v3.1 Base Score 5.1
CWE Classification CWE-20: Improper Input Validation
Affected Product TinyEnv
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.1

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

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

How to Fix CVE-2025-58759

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

datahihi1/tiny-env fixed: 1.0.11 
Upgrade datahihi1/tiny-env to 1.0.11
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 datahihi1/tiny-env

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-58759, inspect your project dependencies for TinyEnv:

inspect dependencies for datahihi1/tiny-env

Analyze the terminal output to locate any version of TinyEnv in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.11), 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-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In TinyEnv, 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

### Impact TinyEnv did not properly strip inline comments inside .env values. This could lead to unexpected behavior or misconfiguration, where variables contain unintended characters (including # or comment text). Applications depending on strict environment values may expose logic errors, insecure defaults, or failed authentication. ### Patches Fixed in v1.0.11. Users should upgrade to the latest patched version. ### Workarounds As a temporary workaround, avoid using inline comments in .env files, or sanitize loaded values manually.

CVE-2025-58759 Affected TinyEnv Versions

1 component(s)
Fixed Versions:
1.0.11
Product / Package Ecosystem Affected Versions Fixed Version
datahihi1/tiny-env
 Packagist
≥ 1.0.9
< 1.0.11
1.0.11

References

GitHub Advisory / Wiki ADVISORY
https://github.com/datahihi1/tiny-env/security/advisories/GHSA-72cm-7236-h43r
NVD — CVE-2025-58759 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-58759
Security Fix Commit FIX COMMIT
https://github.com/datahihi1/tiny-env/commit/69b7b885e6cfbf07f470fb3512360e0caa95521e
TinyEnv Source Repository REPOSITORY
https://github.com/datahihi1/tiny-env

Frequently Asked Questions

What is CVE-2025-58759?
CVE-2025-58759 is a security vulnerability in TinyEnv involving Inline comments not stripped properly in .env values under CWE-20: Improper Input Validation.
Which TinyEnv versions are affected?
Affected versions include releases prior to 1.0.11 across affected packages: datahihi1/tiny-env.
What version fixes CVE-2025-58759?
Upgrading to 1.0.11 (or the latest patched release for your respective branch) resolves the vulnerability.
Is datahihi1/tiny-env affected?
Yes, datahihi1/tiny-env is affected in releases prior to 1.0.11. Upgrade your dependency to 1.0.11 or later.
What is the CVSS score of CVE-2025-58759?
CVE-2025-58759 has a CVSS v3.1 base score of 5.1 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2025-58759?
CVE-2025-58759 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Packagist dependencies for CVE-2025-58759?
Run the dependency tree command: 'inspect dependencies for datahihi1/tiny-env'. 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-72cm-7236-h43r",
  "modified" : "2025-09-10T21:08:19Z",
  "published" : "2025-09-09T21:01:44Z",
  "aliases" : [ "CVE-2025-58759" ],
  "summary" : "TinyEnv: Inline comments not stripped properly in .env values",
  "details" : "### Impact\nTinyEnv did not properly strip inline comments inside .env values. This could lead to unexpected behavior or misconfiguration, where variables contain unintended characters (including # or comment text). Applications depending on strict environment values may expose logic errors, insecure defaults, or failed authentication.\n\n### Patches\nFixed in v1.0.11. Users should upgrade to the latest patched version.\n\n### Workarounds\nAs a temporary workaround, avoid using inline comments in .env files, or sanitize loaded values manually.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "datahihi1/tiny-env"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.0.9"
      }, {
        "fixed" : "1.0.11"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/datahihi1/tiny-env/security/advisories/GHSA-72cm-7236-h43r"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-58759"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/datahihi1/tiny-env/commit/69b7b885e6cfbf07f470fb3512360e0caa95521e"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/datahihi1/tiny-env"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-09-09T21:01:44Z",
    "nvd_published_at" : "2025-09-09T20:15:49Z"
  }
}