{"id":"CVE-2026-105218","state":"PUBLISHED","title":"gopay before 1.5.119 Disabled TLS Certificate Verification in xhttp Client","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.","publishedAt":"2026-10-04T17:09:53.573Z","updatedAt":"2026-10-05T14:55:01.904Z","severity":{"score":9.1,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["go-pay gopay"],"affected":[{"vendor":"go-pay","product":"gopay","packageURL":"pkg:golang/github.com/go-pay/gopay","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.5.119","versionType":"semver"}]}],"references":["https://github.com/go-pay/gopay/issues/540","https://github.com/go-pay/gopay/commit/f6df04fd4f64a2ad2c303ba063b6502bfdd259fd","https://github.com/go-pay/gopay/blob/v1.5.118/pkg/xhttp/client.go#L15-L37","https://github.com/go-pay/gopay","https://www.vulncheck.com/advisories/gopay-before-1.5.119-disabled-tls-certificate-verification-in-xhttp-client"],"weaknesses":["CWE-295"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/105xxx/CVE-2026-105218.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-105218","state":"PUBLISHED","datePublished":"2026-10-04T17:09:53.573Z","dateUpdated":"2026-10-05T14:55:01.904Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-04T13:04:00.479Z"},"containers":{"cna":{"title":"gopay before 1.5.119 Disabled TLS Certificate Verification in xhttp Client","descriptions":[{"lang":"en","value":"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":[{"vendor":"go-pay","product":"gopay","packageURL":"pkg:golang/github.com/go-pay/gopay","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.5.119","versionType":"semver"}]}],"references":[{"url":"https://github.com/go-pay/gopay/issues/540","tags":["issue-tracking"],"name":"GitHub Issue #540"},{"url":"https://github.com/go-pay/gopay/commit/f6df04fd4f64a2ad2c303ba063b6502bfdd259fd","tags":["patch"]},{"url":"https://github.com/go-pay/gopay/blob/v1.5.118/pkg/xhttp/client.go#L15-L37","tags":["technical-description"]},{"url":"https://github.com/go-pay/gopay","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/gopay-before-1.5.119-disabled-tls-certificate-verification-in-xhttp-client","name":"VulnCheck Advisory: gopay before 1.5.119 Disabled TLS Certificate Verification in xhttp Client","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":9.1,"baseSeverity":"CRITICAL"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":7.4,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-295","lang":"en","description":"Improper Certificate Validation","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-04T17:09:53.573Z"},"datePublic":"2026-06-15T00:00:00.000Z","credits":[{"lang":"en","value":"Siyang Wu","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-105218","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-10-05T13:59:07.358923Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-05T14:55:01.904Z"}}]}}}