TI-2020-06558 Aliases CVE-2020-8140 GHSA-2xxg-j453-5c23

Code injection in Desktop Client

LOW 31CWE-94Published 2020-03-20 · Updated 2024-08-04

Key facts

Attack vector: Local
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-94.

Summary

A code injection in Nextcloud Desktop Client 2.6.2 for macOS allowed to load arbitrary code when starting the client with DYLD_INSERT_LIBRARIES set in the environment.

Why it matters now

EPSS 0.00689 52nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	Desktop Client	Fixed in 2.6.3	—	No fix listed	CNA

Desktop Client Vendor— Affected Fixed in 2.6.3 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:nextcloud:desktop::::::::	before 2.6.3	Vulnerable	nextcloud
cpe:2.3:o:apple:macos:-:::::::*	not specified by NVD	Running on	Apple

cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:* Versions before 2.6.3 Vulnerable ·nextcloud
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-8140
2026-10-03 Alias added: GHSA-2xxg-j453-5c23

References

Exploit 1

https://hackerone.com/reports/633266

Advisory 1

https://nextcloud.com/security/advisory/?id=NC-SA-2020-016

TI-2022-18709 Cross-site scripting (XSS) in Nextcloud Desktop Client CVSS 3.1MEDIUM 6.1
TI-2022-18708 Cross-site scripting (XSS) in Nextcloud Desktop Client CVSS 3.1MEDIUM 5.4
TI-2022-18707 Cross-site Scripting (XSS) in Nexcloud Desktop Client CVSS 3.1MEDIUM 5.4
TI-2022-18710 nextcloudcmd incorrectly trusts bad TLS certificates CVSS 3.1MEDIUM 4.7
TI-2020-06645 Path traversal in Desktop Client CVSS 3.1MEDIUM 6.8
TI-2021-05740 Injection in Nextcloud Desktop Client CVSS 3.1HIGH 8.8

See all 26 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences