CVE-2026-39904 | Gophish through 0.12.1 contains a denial of service vulnerab… | CVSS 6.5 MEDIUM

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.

Metadata

CVE ID: CVE-2026-39904
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-04-07 20:57 UTC
Published: 2026-06-22 20:11 UTC
Last updated: 2026-06-22 20:11 UTC
Primary CWE: CWE-770
Allocation of Resources Without Limits or Throttling
Vendor / Product: gophish / gophish
Sources: cve.org · NVD

Severity & Metrics

6.5 MEDIUM CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products (1)

Vendor	Product	Platform	Versions
gophish	gophish	—	0 ≤ 0.12.1

Weakness (CWE)

CWE	Source	Description
CWE-770	cna	Allocation of Resources Without Limits or Throttling

CVSS scores (2)

Score	Severity	Version	Source	Vector
7.1	HIGH	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References (2)