Medium severity · published Oct 30, 2026
CVE-2026-119421
Hyperswitch through 1.128.0 Missing Authorization in Payout Confirmation
New
5.9
CVSS
–
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HY
hyperswitch · juspay
through 1.128.0; before 2026.10.19.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-119421
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-119421
patch
https://github.com/juspay/hyperswitch/commit/f1144ec5c7e38b3b048fe797fad57e743041f345
patch
https://github.com/juspay/hyperswitch/commit/607b15fcc4b7dae71c2aafb8c004eea333ac6fd8
technical-description
https://github.com/juspay/hyperswitch/blob/v1.128.0/crates/router/src/services/authentication.rs#L5921-L5927
technical-description
https://github.com/juspay/hyperswitch/blob/2026.09.21.0/crates/router/src/core/payouts/helpers.rs#L1465
third-party-advisory
https://abraxaslabs.tech/research/hyperswitch-payout-confirm-secret
product
https://github.com/juspay/hyperswitch
More from hyperswitch
5.9
CVE-2026-119422
Hyperswitch before 1.128.0 Webhook Authentication Bypass via Worldpayxml Connector