---
id: CVE-2026-92153
title: >-
  F´ (F Prime) is a framework that enables development and deployment of
  spaceflight and other embedded software applications
summary: >-
  F´ (F Prime) is a framework that enables development and deployment of
  spaceflight and other embedded software applications. Prior to 4.3.0,
  Svc::FileUplink handling of Fw::FilePacket::StartPacket destination paths
  FileUplink copies the …
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L'
cwe:
  - CWE-22
  - CWE-73
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T17:20:21.150'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92153'
references:
  - url: >-
      https://github.com/nasa/fprime/commit/4c8b9c0b8692b0d47cbd5f2ccec61c74aa02b893
    label: security-advisories@github.com
  - url: 'https://github.com/nasa/fprime/pull/5320'
    label: security-advisories@github.com
  - url: 'https://github.com/nasa/fprime/releases/tag/v4.3.0'
    label: security-advisories@github.com
  - url: 'https://github.com/nasa/fprime/security/advisories/GHSA-5rfj-hw2g-vwmv'
    label: security-advisories@github.com
tags:
  - nvd
ingestedAt: '2026-10-14T17:44:53.680Z'
---

## Overview

F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.3.0, Svc::FileUplink handling of Fw::FilePacket::StartPacket destination paths FileUplink copies the packet-controlled destinationPath and opens it for writing without canonicalization or confinement to an upload directory. When a peer able to send file-uplink packets supplies an absolute, traversing, or otherwise attacker-selected writable destination path, files can be created or overwritten at attacker-selected writable filesystem locations, affecting integrity and potentially availability. This issue is fixed in version 4.3.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.