GitHub Advisoryadvisory · Go

GHSA-42jc-v69j-g38f Gophish contains a denial of service vulnerability

HIGH Published 2026-06-22 Modified 2026-08-06 Official page ↗
Aliases
CVE-2026-39904
Ecosystem
Go
Packages
github.com/gophish/gophish
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-770
Reviewed
2026-08-06

Affected packages

• Go github.com/gophish/gophish: <= 0.12.1 (no fix yet)

Description

Gophish through 0.12.1 contains a denial of service vulnerability that allows authenticated users with the User role to exhaust server memory by uploading a crafted Office document as an email template attachment. The ApplyTemplate() function in models/attachment.go processes Office documents as ZIP archives and calls ioutil.ReadAll() on each contained file entry without enforcing size restrictions on uncompressed content, allowing a zip bomb payload to expand to several gigabytes in memory and cause the process to be terminated by the operating system.

Related

Alias · CVE (1)

  • CVE-2026-39904 Gophish through 0.12.1 contains a denial of service vulnerability that allows authenticated users with the User role to exhaust server… vulnerability

Weakness · CWE (1)

  • CWE-770 Allocation of Resources Without Limits or Throttling weakness

References