Vulnerability · Published Oct 4, 2026 · Assigned by VulnCheck
CVE-2026-105218gopay before 1.5.119 Disabled TLS Certificate Verification in xhttp Client
High 7.4
In plain English
A high-severity improper certificate validation in gopay from go-pay. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).
Severity (CVSS 3.1)7.4High
Exploit odds (30 days)0.2%top 94.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
Weakness: CWE-295 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
References
- GitHub Issue #540 issue-tracking
- https://github.com/go-pay/gopay/commit/f6df04fd4f64a2ad2c303ba063b6502bfdd259fd patch
- https://github.com/go-pay/gopay/blob/v1.5.118/pkg/xhttp/client.go#L15-L37 technical-description
- https://github.com/go-pay/gopay product
- VulnCheck Advisory: gopay before 1.5.119 Disabled TLS Certificate Verification in xhttp Client third-party-advisory