CVE-2025-61729

CVSS v3.1

9.8

Critical

Vector

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

Name of the Vulnerable Software and Affected Versions Go versions prior to 1.25.5

Description The software contains a flaw in the error handling mechanism within the HostnameError.Error() function. Specifically, there is no restriction on the number of hosts printed when constructing an error string. This, combined with repeated string concatenation during error string creation, results in quadratic runtime complexity. A malicious actor providing a crafted certificate can exploit this to cause excessive resource consumption.

Recommendations Update to Go version 1.25.5 or later.

Fix

DoS

Improper Certificate Validation

Improper Resource Release

Resource Exhaustion

Found an issue in the description? Have something to add? Feel free to write us 👾

dbugs@ptsecurity.com

Weakness Enumeration

CWE-295CWE-404CWE-400

Related Identifiers

ALSA-2026:0921

ALSA-2026:0922

ALSA-2026:0923

ALSA-2026:1344

ALSA-2026:1518

ALSA-2026:1715

ALSA-2026:18913

ALSA-2026:19013

ALSA-2026:1907

ALSA-2026:1908

ALSA-2026:2124

ALSA-2026:2323

ALSA-2026:2914

ALSA-2026:2920

ALSA-2026:3035

ALSA-2026:3040

ALSA-2026:3291

ALSA-2026:3297

ALSA-2026:3298

ALSA-2026:3336

ALSA-2026:3337

ALSA-2026:3340

ALSA-2026:3341

ALSA-2026:3343

ALSA-2026:3428

ALSA-2026:3752

ALSA-2026:3753

ALSA-2026:3839

ALSA-2026:3840

ALSA-2026:3864

ALSA-2026:3928

ALSA-2026:4164

ALSA-2026:5146

AZL-71255

AZL-71305

AZL-71960

AZL-78931

BDU:2025-16242

BIT-GOLANG-2025-61729

CLEANSTART-2025-EU07511

CLEANSTART-2025-JL63399

CLEANSTART-2025-OB44035

CLEANSTART-2025-YJ25356

CLEANSTART-2026-AB43319

CLEANSTART-2026-AC01087

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CLEANSTART-2026-AH29678

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CLEANSTART-2026-AT12816

CLEANSTART-2026-AU31441

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CLEANSTART-2026-UZ17701

CLEANSTART-2026-UZ79996

CLEANSTART-2026-VC16841

CLEANSTART-2026-VF66781

CLEANSTART-2026-VG57433

CLEANSTART-2026-VI85055

CLEANSTART-2026-VJ56922

CLEANSTART-2026-VL83369

CLEANSTART-2026-VN02574

CLEANSTART-2026-VU08393

CLEANSTART-2026-VU62737

CLEANSTART-2026-VV68546

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CLEANSTART-2026-WA84208

CLEANSTART-2026-WB89098

CLEANSTART-2026-WD32090

CLEANSTART-2026-WL14185

CLEANSTART-2026-XB34574

CLEANSTART-2026-XB70091

CLEANSTART-2026-XO49545

CLEANSTART-2026-XO66167

CLEANSTART-2026-XV54160

CLEANSTART-2026-XZ04425

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CVE-2025-61729

ECHO-151B-E2C7-B7F1

GO-2025-4155

MGASA-2025-0326

OPENSUSE-SU-2025:15795-1

OPENSUSE-SU-2025:15796-1

OPENSUSE-SU-2025:15807-1

OPENSUSE-SU-2025:15817-1

OPENSUSE-SU-2025:20157-1

OPENSUSE-SU-2025:20158-1

OPENSUSE-SU-2026:10030-1

OPENSUSE-SU-2026:10260-1

OPENSUSE-SU-2026:10688-1

OPENSUSE-SU-2026:20301-1

OPENSUSE-SU-2026:20308-1

RHSA-2026:0921

RHSA-2026:0922

RHSA-2026:0923

RHSA-2026:11749

RHSA-2026:12028

RHSA-2026:12029

RHSA-2026:12030

RHSA-2026:12031

RHSA-2026:12032

RHSA-2026:12033

RHSA-2026:1249

RHSA-2026:1344

RHSA-2026:14868

RHSA-2026:1497

RHSA-2026:1506

RHSA-2026:1518

RHSA-2026:16102

RHSA-2026:16696

RHSA-2026:17040

RHSA-2026:17084

RHSA-2026:1715

RHSA-2026:1813

RHSA-2026:1814

RHSA-2026:18913

RHSA-2026:19013

RHSA-2026:1907

RHSA-2026:1908

RHSA-2026:19634

RHSA-2026:2124

RHSA-2026:2217

RHSA-2026:2218

RHSA-2026:2219

RHSA-2026:2223

RHSA-2026:2265

RHSA-2026:2320

RHSA-2026:2323

RHSA-2026:2334

RHSA-2026:2441

RHSA-2026:2769

RHSA-2026:2914

RHSA-2026:2920

RHSA-2026:3035

RHSA-2026:3040

RHSA-2026:3053

RHSA-2026:3287

RHSA-2026:3288

RHSA-2026:3289

RHSA-2026:3291

RHSA-2026:3297

RHSA-2026:3298

RHSA-2026:3336

RHSA-2026:3337

RHSA-2026:3340

RHSA-2026:3341

RHSA-2026:3343

RHSA-2026:3428

RHSA-2026:3506

RHSA-2026:3752

RHSA-2026:3753

RHSA-2026:3812

RHSA-2026:3815

RHSA-2026:3816

RHSA-2026:3817

RHSA-2026:3818

RHSA-2026:3820

RHSA-2026:3821

RHSA-2026:3822

RHSA-2026:3831

RHSA-2026:3833

RHSA-2026:3835

RHSA-2026:3836

RHSA-2026:3838

RHSA-2026:3839

RHSA-2026:3840

RHSA-2026:3841

RHSA-2026:3843

RHSA-2026:3854

RHSA-2026:3864

RHSA-2026:3879

RHSA-2026:3880

RHSA-2026:3928

RHSA-2026:3929

RHSA-2026:3930

RHSA-2026:3931

RHSA-2026:3932

RHSA-2026:3970

RHSA-2026:3971

RHSA-2026:3972

RHSA-2026:3973

RHSA-2026:3974

RHSA-2026:4164

RHSA-2026:4166

RHSA-2026:4211

RHSA-2026:4464

RHSA-2026:4753

RHSA-2026:4892

RHSA-2026:4901

RHSA-2026:4907

RHSA-2026:4952

RHSA-2026:5022

RHSA-2026:5030

RHSA-2026:5031

RHSA-2026:5076

RHSA-2026:5077

RHSA-2026:5078

RHSA-2026:5079

RHSA-2026:5146

RHSA-2026:5327

RHSA-2026:5461

RHSA-2026:5533

RHSA-2026:5544

RHSA-2026:5852

RHSA-2026:5853

RHSA-2026:5866

RHSA-2026:5968

RHSA-2026:7291

RHSA-2026:7385

RHSA-2026:7676

RHSA-2026:7854

RHSA-2026:9097

RHSA-2026:9098

RHSA-2026:9108

RHSA-2026:9109

SUSE-SU-2025:21192-1

SUSE-SU-2025:21193-1

SUSE-SU-2025:4336-1

SUSE-SU-2025:4337-1

SUSE-SU-2025:4395-1

SUSE-SU-2026:0296-1

SUSE-SU-2026:0297-1

SUSE-SU-2026:0298-1

SUSE-SU-2026:0308-1

SUSE-SU-2026:20623-1

SUSE-SU-2026:20629-1

Affected Products

Alt Linux

Debian

Red Os

Rocky Linux

Suse

CVE-2025-61729

Weakness Enumeration

Related Identifiers

Affected Products

References · 1541