Hyperswitch 1.128.0 版缺失授權漏洞，允許未授權者確認付款
CVE-2026-119421 - Hyperswitch through 1.128.0 Missing Authorization in Payout Confirmation
Hyperswitch 1.128.0 版存在缺失授權漏洞，允許持有商戶公開金鑰者透過 POST /payouts/{payout_id}/confirm 任意確認並改寫付款金額、幣別、連線器與路由設定，進而觸發未授權付款。
此漏洞使持有商戶公開金鑰者可偽造付款，提醒使用者即時升級並檢查許可權設定，並建議監控交易日誌以防止未授權操作。
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.
Impact
Affected Products
The following products are affected by CVE-2026-119421
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Update Juspay Hyperswitch to version 1.128.0 or later to fix missing authorization.
- Update Juspay Hyperswitch to a secure version.
- Verify access controls for payout confirmation.
- Restrict access to publishable keys.
- Monitor payout transaction logs.
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-119421.
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-119421 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-119421
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-119421 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-119421 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
十月. 30, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Added CWE CWE-639 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/119xxx/CVE-2026-119421.json">CVE-2026-119421</a> Added Reference https://abraxaslabs.tech/research/hyperswitch-payout-confirm-secret Added Reference https://github.com/juspay/hyperswitch Added Reference https://github.com/juspay/hyperswitch/blob/2026.09.21.0/crates/router/src/core/payouts/helpers.rs#L1465 Added Reference https://github.com/juspay/hyperswitch/blob/v1.128.0/crates/router/src/services/authentication.rs#L5921-L5927 Added Reference https://github.com/juspay/hyperswitch/commit/607b15fcc4b7dae71c2aafb8c004eea333ac6fd8 Added Reference https://github.com/juspay/hyperswitch/commit/f1144ec5c7e38b3b048fe797fad57e743041f345 Added Reference https://www.vulncheck.com/advisories/hyperswitch-through-1.128.0-missing-authorization-in-payout-confirmation
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.