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.

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
juspay hyperswitch unaffected
Version Status Constraints
0 affected < 1.128.0
0 affected < 2026.10.01.0

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://abraxaslabs.tech/research/hyperswitch-unsigned-webhook cve-icon cve-icon
https://github.com/juspay/hyperswitch cve-icon cve-icon
https://github.com/juspay/hyperswitch/blob/v1.127.0/crates/hyperswitch_connectors/src/connectors/worldpayxml.rs#L1391-L1392 cve-icon cve-icon
https://github.com/juspay/hyperswitch/commit/681cf96bbc888239daf669a71b0554e934210ee3 cve-icon cve-icon
https://github.com/juspay/hyperswitch/commit/e797b36a1af204f4e4820c4938c6e4b10e9ae4fa cve-icon cve-icon
https://github.com/juspay/hyperswitch/releases/tag/v1.128.0 cve-icon cve-icon
https://www.vulncheck.com/advisories/hyperswitch-before-1.128.0-webhook-authentication-bypass-via-worldpayxml-connector cve-icon cve-icon
History

Fri, 30 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 30 Oct 2026 11:45:00 +0000

Type Values Removed Values Added
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.
Title Hyperswitch before 1.128.0 Webhook Authentication Bypass via Worldpayxml Connector
Weaknesses CWE-345
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-30T16:05:29.768Z

Reserved: 2026-10-30T02:41:12.895Z

Link: CVE-2026-119422

cve-icon Vulnrichment

Updated: 2026-10-30T16:05:25.332Z

cve-icon NVD

Status : Received

Published: 2026-10-30T12:16:39.047

Modified: 2026-10-30T17:17:19.450

Link: CVE-2026-119422

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-30T13:00:15Z

Weaknesses