CVE-2026-44887
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 · uneditedPi.Alert is a WIFI / LAN intruder detector with web service monitoring. Prior to 2026-05-07, Pi.Alert's web-based configuration editor allows arbitrary Python code to be injected into pialert.conf. Since the background scan daemon loads this file via Python's exec(), injected code executes as the daemon process. With web protection disabled (the default configuration), no authentication is required, making this an unauthenticated Remote Code Execution vulnerability. This vulnerability is fixed in 2026-05-07.
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 · high confidencePi.Alert's web-based configuration editor allows arbitrary Python code injection into pialert.conf. When the background scan daemon loads this configuration file using Python's exec() function, the injected code executes as the daemon process. Since web protection is disabled by default, no authentication is required, enabling unauthenticated Remote Code Execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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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Locate Pi.Alert installationFind the directory containing pialert.conf or the main Pi.Alert application files (commonly /opt/pialert, ~/pialert, or within the web server document root)Affected if Pi.Alert is installed and pialert.conf exists
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Determine installed versionCheck the version file (version.txt, VERSION, or similar) in the Pi.Alert directory, or run 'grep -r VERSION' in the installation folder to find the exact release versionAffected if Version is earlier than the 2026-05-07 patch release
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Check if web authentication is disabledOpen pialert.conf and locate the WEB_PROTECTION or AUTH_ENABLED setting. If it is set to false, 0, or is commented out, authentication is disabledAffected if Web authentication is disabled in the configuration (the default vulnerable state)
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Confirm vulnerable config loading mechanismExamine the Python source code that loads pialert.conf (typically in a backend scan or daemon script). Search for exec() or execfile() being used to parse the configuration fileAffected if The code uses exec() to load pialert.conf, allowing injected Python code to execute
Environment is affected if Pi.Alert is running a version prior to the 2026-05-07 fix with web authentication disabled, allowing unauthenticated attackers to inject Python code via the configuration editor that will execute when the scan daemon loads the config.
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.
From vendor dataUpdate to the version released on or after 2026-05-07 which fixes the unsafe use of exec() and implements proper input sanitization. As a defense-in-depth measure, enable web authentication even after patching.
- Consultation3.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-44887 — 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-2026-44887 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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