CVE-2026-70658
- Source
- https://cve.org/CVERecord?id=CVE-2026-70658
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-70658.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-70658
- Aliases
- Published
- 2026-09-14T17:14:57Z
- Modified
- 2026-10-28T02:31:08Z
- Severity
-
- 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- pay-rails/pay: non-constant-time HMAC comparison in Paddle Billing webhook signature verifier
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-208" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70658.json" }- References
-
- https://github.com/pay-rails/pay/releases/tag/v11.6.2
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70658.json
- https://github.com/pay-rails/pay/security/advisories/GHSA-mjgf-xj26-9qf9
- https://nvd.nist.gov/vuln/detail/CVE-2026-70658
- https://github.com/pay-rails/pay/commit/ba6494109d88209fba2a4df2d9d6373fe81ed805
Affected packages
Git / github.com/pay-rails/pay
Affected ranges
- Type
- GIT
- Repo
- https://github.com/pay-rails/pay
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "11.6.2" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "ba6494109d88209fba2a4df2d9d6373fe81ed805" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v11.6.2", "range": [ { "fixed": "0701305bb142aadc42e259203aa438bc5969a983" } ], "source": "REFERENCES_TAG" } ] }