CVE-2026-119421

Medium

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.

SeverityMedium

CVSS5.9

Exploit probability—

Product

Juspay Hyperswitch

PublishedOct 30, 2026

First seenNov 4, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

juspay hyperswitch2026.10.19.0 or later

Patches

Affected products

Product	Affected versions	Fixed in
juspay hyperswitch	v ≤ 1.128.0, v < 2026.10.19.0	2026.10.19.0

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