CVE-2025-61725

Excessive CPU consumption in ParseAddress in net/mail

Published Oct 29, 2025 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
The ParseAddress function constructs domain-literal address components through repeated string concatenation. When parsing large domain-literal components, this can cause excessive CPU consumption.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Description The ParseAddress function constructeds domain-literal address components through repeated string concatenation. When parsing large domain-literal components, this can cause excessive CPU consumption. The ParseAddress function constructs domain-literal address components through repeated string concatenation. When parsing large domain-literal components, this can cause excessive CPU consumption.
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Golang
Golang mail
Vendors & Products Golang
Golang mail
Type Values Removed Values Added
Description The ParseAddress function constructeds domain-literal address components through repeated string concatenation. When parsing large domain-literal components, this can cause excessive CPU consumption.
Title Excessive CPU consumption in ParseAddress in net/mail
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Go
Published
Updated
Dec 9, 2025, 5:42 PM
Reserved
Sep 30, 2025, 3:05 PM
Status
Deferred
Published
Oct 29, 2025, 11:16 PM
Modified
Oct 8, 2026, 10:10 AM
Severity
Moderate
Public date
Oct 29, 2025, 10:10 PM