CVE-2026-2449
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 · uneditedImproper neutralization of argument delimiters in a command ('argument injection') vulnerability in upKeeper Solutions upKeeper Instant Privilege Access allows Hijacking a Privileged Thread of Execution.This issue affects upKeeper Instant Privilege Access: through 1.5.0.
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 confidenceA critical argument injection vulnerability in upKeeper Instant Privilege Access versions through 1.5.0 allows attackers to inject malicious argument delimiters into commands, enabling hijacking of a privileged thread of execution. The improper neutralization of argument delimiters means user-supplied input can manipulate command arguments rather than executing arbitrary commands directly.
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
- High
- Privileges
- Low
- Authentication
- X
- User interaction
- None
- Scope
- X
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
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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Identify if upKeeper Instant Privilege Access is installedSearch for upKeeper software on the system using package managers, installed programs listings, or by searching for 'upKeeper' in the file system (e.g., find / -iname '*upkeeper*' 2>/dev/null)Affected if upKeeper Instant Privilege Access is found on the system
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Determine the installed version of upKeeperRun the application's version command (typically --version or -v flag), check the Windows registry for installed software version, or examine the application binary's metadataAffected if The installed version is 1.5.0 or any version lower than 1.5.0 (versions through 1.5.0 are affected)
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Identify interfaces accepting user input that feed into command executionReview application logs, configuration files, or API endpoints that accept user-supplied data; examine how user input is processed before being passed to system commandsAffected if User-supplied input can reach command argument fields without proper sanitization of argument delimiters (spaces, semicolons, quotes, etc.)
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Check for exposed or accessible service interfacesReview network listeners, web services, or IPC mechanisms that the upKeeper service exposes; examine configuration files for public-facing settingsAffected if The upKeeper service accepts input from untrusted sources that could inject argument delimiters
If upKeeper Instant Privilege Access version 1.5.0 or lower is installed and any interface accepts user input that flows into command arguments without sanitizing argument delimiters, the environment is affected by CVE-2026-2449.
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 dataApply vendor-supplied patch/upgrade to version beyond 1.5.0 immediately; if no patch available, restrict access to the upKeeper service to trusted administrators only and monitor for anomalous process behavior.
- Consultation4.0 h
- Implementation2.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-2449 — 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-2026-2449 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
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