CVE-2026-54587

mport directory asset installation is vulnerable to symlink and path traversal races

Published: Sep 17, 2026Updated: Sep 17, 2026 Sources: CVE List NVDCWE-59

N/ACVSS

NVD MITRE

Description

mport is the MidnightBSD Package Manager. Prior to 2.7.8, directory assets handled as ASSET_DIR or ASSET_DIR_OWNER_MODE in libmport/bundle_read_install_pkg.c used path-based mport_mkdirp(), ownership, and permission operations. A local attacker able to modify part of the target installation tree could use dot-dot traversal or substitute symlinks during privileged package installation, causing directory creation or attribute changes to affect attacker-selected paths outside the intended package directories. This issue is fixed in version 2.7.8.

No summary for this CVE yet.

Weaknesses

CWE-59 CWE-367

Affected Products

MidnightBSD

oss-project

mportOn-prem

Operating Systems / unix-bsd

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

3 techniques

Collection

Discovery

Privilege Escalation

View detailed technique mapping

References

https://github.com/MidnightBSD/mport/commit/a4fa996df1fbebeff3691e1b512c807b5f414b5d

github.com

https://github.com/MidnightBSD/mport/pull/119

github.com

https://github.com/MidnightBSD/mport/releases/tag/2.7.8

github.com

and 1 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-54587 and every CVE in our database. Create a free account — no credit card required.

Create Free Account

Plain-language analysis

Impact assessment and exploitation scenario in plain English

Attack graph visualization

Interactive attack path and kill chain mapping

Exploit details & PoC links

ExploitDB, Metasploit, GitHub PoCs with direct links

Nuclei scanner templates

Ready-to-use vulnerability scanner templates

Full remediation guide

Patch instructions, workarounds, and compliance impact

Interactive AI chat

Ask questions about this vulnerability in natural language

Related vulnerabilities

Semantically similar CVEs and attack patterns

REST API & MCP access

Integrate vulnerability data into your workflows