TI-2020-16320 Aliases CVE-2020-26893 GHSA-w39g-j8qq-3fch

An issue was discovered in ClamXAV 3 before 3.1.1.

LOW 34CWE-345Published 2020-10-16 · Updated 2024-08-04

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
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-345.

Summary

An issue was discovered in ClamXAV 3 before 3.1.1. A malicious actor could use a properly signed copy of ClamXAV 2 (running with an injected malicious dylib) to communicate with ClamXAV 3's helper tool and perform privileged operations. This occurs because of inadequate client verification in the helper tool.

Why it matters now

EPSS 0.0023 13th percentileScored 2026-11-07

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
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:clamxav:clamxav::::::::	3.0.0 to before 3.1.1	Vulnerable	Clamxav

cpe:2.3:a:clamxav:clamxav:*:*:*:*:*:*:*:* Versions 3.0.0 to before 3.1.1 Vulnerable ·Clamxav

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-26893
2026-10-03 Alias added: GHSA-w39g-j8qq-3fch

References

Advisory 1

https://gist.github.com/matt-clamxav/d341bd48f12a14d2147f8ce860bb36d0

TI-2024-16044 An issue in Canimaan Software LTD ClamXAV v3.1.2 through v3.6.1 and fixed in v.3.6.2… CVSS 3.1HIGH 7.8

Sources

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