CVE-2025-58759
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedTinyEnv is an environment variable loader for PHP applications. In versions 1.0.9 and 1.0.10, 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. The issue is fixed in v1.0.11. Users should upgrade to the latest patched version. As a temporary workaround, avoid using inline comments in .env files, or sanitize loaded values manually.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceTinyEnv versions 1.0.9 and 1.0.10 fail to properly strip inline comments (text after #) from .env file values during parsing. This causes environment variables to contain unintended characters including literal # symbols and comment text, rather than just the intended value.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data>= 1.0.9, < 1.0.11CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check TinyEnv library versionRun pip show tinyenv or pip list | grep -i tinyenv to see the installed version. Compare against the affected range: 1.0.9 to 1.0.10 inclusive are vulnerable.Affected if Installed version is 1.0.9 or 1.0.10
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Identify if TinyEnv parses .env filesSearch your codebase for imports like 'from tinyenv import' or 'import tinyenv' and look for calls to load(), parse(), or similar functions that read .env files.Affected if TinyEnv is used to load .env files in the application
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Examine .env files for inline commentsInspect your .env files and look for lines containing values followed by # and additional text, such as: API_KEY=secret123#this is a commentAffected if Any .env file contains inline comments (text after # on the same line as a value)
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Verify loaded environment variable valuesAfter loading .env with TinyEnv, print or log os.environ.get('VARIABLE_NAME') for variables that had inline comments. Check if the value includes the literal # and subsequent text.Affected if The retrieved environment variable value contains # and additional text that should have been stripped as a comment
You are affected if you use TinyEnv version 1.0.9 or 1.0.10 AND load .env files containing inline comments, causing environment variables to retain unintended # characters and comment text.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped1.0.11
Upgrade TinyEnv to v1.0.11 to receive the patch, or as a workaround avoid using inline comments in .env files and manually sanitize loaded values to prevent logic errors, insecure defaults, or authentication failures.
v1.0.11
- Check the current installed version of TinyEnv in the project (e.g., composer show tinyenv/tinyenv or grep tinyenv composer.lock)
- Upgrade TinyEnv to version 1.0.11 using Composer: composer require tinyenv/tinyenv:1.0.11 or composer update tinyenv/tinyenv
- Verify the new version is installed: composer show tinyenv/tinyenv
- Test the application to confirm environment variables are loaded correctly without unintended inline comment characters
- Check that any .env files using inline comments (values containing #) are now properly parsed
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-58759 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-58759 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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