Medium severity5.9NVD Advisory· Published Oct 30, 2026
CVE-2026-119421
CVE-2026-119421
Description
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.
Affected products
1- Range: <=1.128.0, <2026.10.19.0
Patches
Vulnerability mechanics
References
6- abraxaslabs.tech/research/hyperswitch-payout-confirm-secretnvd
- github.com/juspay/hyperswitch/blob/2026.09.21.0/crates/router/src/core/payouts/helpers.rsnvd
- github.com/juspay/hyperswitch/blob/v1.128.0/crates/router/src/services/authentication.rsnvd
- github.com/juspay/hyperswitch/commit/607b15fcc4b7dae71c2aafb8c004eea333ac6fd8nvd
- github.com/juspay/hyperswitch/commit/f1144ec5c7e38b3b048fe797fad57e743041f345nvd
- www.vulncheck.com/advisories/hyperswitch-through-1.128.0-missing-authorization-in-payout-confirmationnvd
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