Which versions of Upkeeper Instant Privilege Access are affected by EUVD-2026-22248?

upKeeper Instant Privilege Access versions through 1.5.0 contain a critical argument injection flaw that allows authenticated users to hijack privileged execution and escalate permissions across…

How to fix or mitigate EUVD-2026-22248?

Within 24 hours: Inventory all upKeeper Instant Privilege Access deployments and document current versions in use; restrict network access to the application to essential users only via firewall rules. Within 7 days: Disable or isolate upKeeper instances running version 1.5.0 or earlier until a patch is available; monitor privileged execution logs for anomalous command patterns. Within 30 days: Establish contact with vendor for patch timeline; evaluate alternative privilege access solutions if patch remains unavailable; conduct access reviews for all accounts with upKeeper permissions.

Upkeeper Instant Privilege Access EUVD-2026-22248

Q: What is the CVSS score of EUVD-2026-22248?

EUVD-2026-22248 has a CVSS 4.0 base score of 9.0 (Critical). CVSS vector: 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. EPSS exploitation probability: 0.1%.

| CVE-2026-2449 CRITICAL

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') (CWE-88)

2026-04-14 upKeeper

GHSA-56r8-2cmq-4v45

Code Injection Upkeeper Instant Privilege Access

9.0

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

9.0 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Re-analysis Queued

Apr 17, 2026 - 15:37 vuln.today

cvss_changed

Analysis Generated

Apr 14, 2026 - 12:35 vuln.today

CVSS changed

Apr 14, 2026 - 12:22 NVD

9.0 (CRITICAL)

EUVD ID Assigned

Apr 14, 2026 - 12:15 euvd

EUVD-2026-22248

Analysis Generated

Apr 14, 2026 - 12:15 vuln.today

CVE Published

Apr 14, 2026 - 11:56 nvd

CRITICAL 9.0

DescriptionCVE.org

Improper 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.

AnalysisAI

Argument injection in upKeeper Instant Privilege Access through version 1.5.0 enables remote authenticated attackers to hijack privileged execution threads via manipulated command delimiters. The network-accessible attack vector combined with high confidentiality, integrity, and availability impacts across both vulnerable and subsequent systems creates critical risk for privilege escalation scenarios. EPSS data not available; no confirmed active exploitation (CISA KEV) or public exploit code identified at time of analysis, though vendor self-disclosure suggests potential for targeted abuse.

Technical ContextAI

This vulnerability exploits CWE-88 (Argument Injection) in upKeeper Solutions' Instant Privilege Access product, a privileged access management tool designed to grant temporary elevated permissions. Argument injection occurs when user-controlled input is improperly sanitized before being incorporated into command arguments, allowing attackers to inject additional parameters or options that alter command behavior. The affected CPE (cpe:2.3:a:upkeeper_solutions:upkeeper_instant_privilege_access) encompasses all versions through 1.5.0. The CVSS 4.0 vector indicates network attack vector (AV:N) with high attack complexity (AC:H), requiring low privileges (PR:L) but no user interaction. The vulnerability's scope change indicators (SC:H/SI:H/SA:H) demonstrate that successful exploitation impacts systems beyond the vulnerable component itself, characteristic of privilege escalation attacks where an attacker leverages compromised privileges to affect downstream systems or processes.

RemediationAI

Upgrade upKeeper Instant Privilege Access to a version newer than 1.5.0 that addresses CVE-2026-2449, consulting the vendor advisory at https://support.upkeeper.se/hc/en-us/articles/26783425404444-CVE-2026-2449-Improper-neutralization-of-argument-delimiters-in-a-command for specific patched release information and installation guidance. Upstream fix available (vendor advisory published); released patched version number not independently confirmed from available data, requiring direct vendor consultation. Interim risk reduction measures include restricting network access to upKeeper components to trusted management networks only, implementing strict authentication controls for accounts with upKeeper access, monitoring command execution logs for anomalous argument patterns, and reviewing audit trails for unexpected privilege elevation events. Organizations unable to immediately patch should consider temporarily disabling remote access to upKeeper interfaces pending upgrade deployment.