CVE-2026-105218

gopay before 1.5.119 Disabled TLS Certificate Verification in xhttp Client

9.1 Critical

gopay before 1.5.119 disables TLS certificate verification in defaultClient() in pkg/xhttp/client.go, allowing man-in-the-middle attackers to impersonate payment provider APIs. Attackers can present any certificate to read merchant credentials, signatures and transaction data, and modify payment, refund and order query responses.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

0.16%Unchanged since Oct 5, 2026

What each source reports

CVE List Score used 9.1

gopay before 1.5.119 Disabled TLS Certificate Verification in xhttp Client

Record: CVE-2026-105218
CVSS 4.0: 9.1 CriticalCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 7.4 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-295
Updated: 2026-11-02

EUVDEUVD-2026-92121 9.1

Record: EUVD-2026-92121
CVSS 4.0: 9.1 CriticalCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-8f6w-7m2h-mfwg 9.1

gopay before 1.5.119 disables TLS certificate verification in defaultClient() in pkg/xhttp/client...

Record: GHSA-8f6w-7m2h-mfwg
CVSS 4.0: 9.1 CriticalCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 7.4 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-295
Updated: 2026-11-02

NVD 9.1

Record: CVE-2026-105218
CVSS 4.0: 9.1 CriticalCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 7.4 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-295
Updated: 2026-11-02

OSV 9.1

gopay before 1.5.119 Disabled TLS Certificate Verification in xhttp Client

Record: CVE-2026-105218
CVSS 4.0: 9.1 CriticalCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-295
Updated: 2026-11-02

Affected products

go-pay gopay

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-105218 is a critical vulnerability (CVSS 9.1) in Go-pay Gopay, published October 4, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.16%, the 5th percentile. No source names a fixed version.