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vuln-cve/data/2026/70xxx/CVE-2026-70658.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-70658",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-08-04T21:48:08.613Z",
"datePublished": "2026-09-14T17:14:57.207Z",
"dateUpdated": "2026-09-14T18:57:30.947Z"
},
"containers": {
"cna": {
"title": "pay-rails/pay: non-constant-time HMAC comparison in Paddle Billing webhook signature verifier",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"lang": "en",
"description": "CWE-208: Observable Timing Discrepancy",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/pay-rails/pay/security/advisories/GHSA-mjgf-xj26-9qf9",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/pay-rails/pay/security/advisories/GHSA-mjgf-xj26-9qf9"
},
{
"name": "https://github.com/pay-rails/pay/commit/ba6494109d88209fba2a4df2d9d6373fe81ed805",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pay-rails/pay/commit/ba6494109d88209fba2a4df2d9d6373fe81ed805"
},
{
"name": "https://github.com/pay-rails/pay/releases/tag/v11.6.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pay-rails/pay/releases/tag/v11.6.2"
}
],
"affected": [
{
"vendor": "pay-rails",
"product": "pay",
"versions": [
{
"version": "< 11.6.2",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-09-14T17:14:57.207Z"
},
"descriptions": [
{
"lang": "en",
"value": "Pay is a payments engine for Ruby on Rails 6.0 and higher. Prior to 11.6.2, Pay::Webhooks::PaddleBillingController#valid_signature? in app/controllers/pay/webhooks/paddle_billing_controller.rb compares the computed 64-character SHA-256 HMAC with the attacker-controlled h1 token from the Paddle-Signature header using Ruby String#==. An unauthenticated remote attacker who can repeatedly submit requests to /pay/webhooks/paddle_billing and obtain sufficiently precise timing measurements can infer matching digest prefixes and recover a valid signature. A forged accepted webhook is enqueued through Pay::Webhooks::ProcessJob and can cause a host application to update billing state, provision paid features, record refunds, or trigger customer notifications. This issue is fixed in version 11.6.2."
}
],
"source": {
"advisory": "GHSA-mjgf-xj26-9qf9",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/pay-rails/pay/security/advisories/GHSA-mjgf-xj26-9qf9",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-09-14T18:57:23.905589Z",
"id": "CVE-2026-70658",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-09-14T18:57:30.947Z"
}
}
]
}
}