CVE-2026-119422

high

Description

Juspay Hyperswitch before 1.128.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge payment status updates because the Worldpayxml connector's verify_webhook_source always returns true without enforced mTLS. Attackers knowing the merchant_id and Worldpay orderCode can POST unsigned XML with lastEvent SETTLED to the worldpayxml webhook endpoint, marking unpaid payments as charged or triggering refund, dispute and payout events.

References

https://www.vulncheck.com/advisories/hyperswitch-before-1.128.0-webhook-authentication-bypass-via-worldpayxml-connector

https://github.com/juspay/hyperswitch/releases/tag/v1.128.0

https://github.com/juspay/hyperswitch/commit/e797b36a1af204f4e4820c4938c6e4b10e9ae4fa

https://github.com/juspay/hyperswitch/commit/681cf96bbc888239daf669a71b0554e934210ee3

https://github.com/juspay/hyperswitch/blob/v1.127.0/crates/hyperswitch_connectors/src/connectors/worldpayxml.rs#L1391-L1392

https://github.com/juspay/hyperswitch

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-113802

https://abraxaslabs.tech/research/hyperswitch-unsigned-webhook

Details

Source: Mitre, NVD

Published: 2026-10-30

Updated: 2026-10-30

Risk Information

CVSS v2

Base Score: 5.4

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 5.9

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Severity: Medium

CVSS v4

Base Score: 8.2

Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00237