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Vulnerabilities

Security research · CVE-2026-119713

Paperclip: OS Command Injection via Execution Workspace cleanupCommand

Published Apr 16, 2026 · catalog updated Oct 31, 2026 · Paperclip: OS Command Injection

Last checked Nov 3, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-119713. EPSS is 0.80%. Act only if a listed version of Paperclip: OS Command Injection is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Paperclip: OS Command Injection).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.80%
Remediation
Advisory link
Affected products
npm @paperclipai/server

| Field | Value | |-------|-------| | **Affected Software** | Paperclip AI v2026.403.0 | | **Affected Component** | Execution Workspace lifecycle ( ) | | **Affected Endpoint** | | | **Deployment Modes** | All — (zero auth), (any company user) | | **Platforms** | Linux, macOS, Windows (with Git installed) | | **Date** | 2026-04-13 | --- ## Executive Summary A critical OS command injection vulnerability exists in Paperclip's execution workspace lifecycle. An attacker can inject arbitrary shell commands into the field via the endpoint. When the workspace is archived, the server executes this command verbatim via with no input validation or sanitization. In mode (the default for desktop installations), this requires zero authentication. Three independent proofs of exploitation were demonstrated on Windows 11: arbitrary file write, full system information exfiltration ( ), and GUI application launch ( ). --- ## Root Cause Analysis ### Vulnerable Code Path ** (line ~738)** The function iterates over cleanup commands from workspace config and executes each via shell: ### Missing Input Validation ** — PATCH handler** The PATCH endpoint accepts a object containing with no validation: The value is stored directly in workspace metadata and later passed to without sanitization, allowlisting, or escaping. ### Shell Resolution ** ** returns or falls back to : - **Linux/macOS**: exists natively — commands execute immediately - **Windows**: is available via Git for Windows ( ) — Paperclip requires Git, so is present on most installations --- ## Attack Chain The exploit requires 5 HTTP requests with zero authentication in mode: ### Step 1 — Find a Company ### Step 2 — Find an Execution Workspace ### Step 3 — Reactivate Workspace (if archived/failed) ### Step 4 — Inject cleanupCommand (Command Injection) Response confirms storage: ### Step 5 — Trigger RCE (Archive Workspace) This triggers which calls: The injected command is executed with the privileges of the Paperclip server proces

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • npm @paperclipai/server0 → 2026.416.0

How to fix CVE-2026-119713

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-119713. EPSS is 0.80%. Act only if a listed version of Paperclip: OS Command Injection is installed.

Which versions are affected?

Compare what you have installed with 0 → 2026.416.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-78: OS Command Injection. EPSS 0.80%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 16, 2026 · GitHub Advisory Database

    Detected

    | Field | Value | |-------|-------| | **Affected Software** | Paperclip AI v2026.403.0 | | **Affected Component** | Execution Workspace lifecycle ( ) | | **Affected Endpoint** | | | **Deployment Modes** | All — (zero auth), (any company user) | | **Platforms** | Linux, macOS, Windows (with Git installed) | | **Date** | 2026-04-13 | --- ## Executive Summary A critical OS command injection vulnerabi

  2. Oct 31, 2026 · GitHub Advisory Database

    Fix available

    @paperclipai/server fixed in 2026.416.0

  3. Oct 31, 2026 · GitHub Advisory Database

    Fix available

    @paperclipai/server fixed in 2026.416.0

  4. Oct 31, 2026 · GitHub Advisory Database

    Updated

    | Field | Value | |-------|-------| | **Affected Software** | Paperclip AI v2026.403.0 | | **Affected Component** | Execution Workspace lifecycle ( ) | | **Affected Endpoint** | | | **Deployment Modes** | All — (zero auth), (any company user) | | **Platforms** | Linux, macOS, Windows (with Git installed) | | **Date** | 2026-04-13 | --- ## Executive Summary A critical OS command injection vulnerabi

Sources

References

Freshness

Last verified in this catalog Nov 3, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 3, 2026
  • GitHub Advisory DatabaseNov 1, 2026
  • OpenSSF OSV / OSV ScannerNov 1, 2026
  • CVE.orgOct 31, 2026