CVE-2026-119421
Hyperswitch through 1.128.0 Missing Authorization in Payout Confirmation
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
Juspay Hyperswitch through 1.128.0 (and builds before 2026.10.19.0) contains a missing authorization vulnerability that allows unauthenticated attackers to confirm payouts with any client_secret via POST /payouts/{payout_id}/confirm. Attackers holding the merchant's publishable key and a payout_id can confirm payouts and overwrite amount, currency, connector, and routing fields to trigger unauthorized merchant payouts.
| CWE | CWE-639 |
| Vendor | juspay |
| Product | hyperswitch |
| Published | Oct 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected Versions
juspay / hyperswitch
0 ≤ 1.128.0 0 < 2026.10.19.0
References
github.com: https://github.com/juspay/hyperswitch/commit/f1144ec5c7e38b3b048fe797fad57e743041f345 github.com: https://github.com/juspay/hyperswitch/commit/607b15fcc4b7dae71c2aafb8c004eea333ac6fd8 github.com: https://github.com/juspay/hyperswitch/blob/v1.128.0/crates/router/src/services/authentication.rs#L5921-L5927 github.com: https://github.com/juspay/hyperswitch/blob/2026.09.21.0/crates/router/src/core/payouts/helpers.rs#L1465 abraxaslabs.tech: https://abraxaslabs.tech/research/hyperswitch-payout-confirm-secret github.com: https://github.com/juspay/hyperswitch vulncheck.com: https://www.vulncheck.com/advisories/hyperswitch-through-1.128.0-missing-authorization-in-payout-confirmation
Credits
Abraxas Labs Sakil Mostak