CVE-2026-119421
mediumJuspay Hyperswitch through 1.128.0 (and builds before 2026.10.19.0) contains a missing authorization vulnerability that allows unauthenticated attackers to con…
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://abraxaslabs.tech/research/hyperswitch-payout-confirm-secret disclosure@vulncheck.com
- https://github.com/juspay/hyperswitch disclosure@vulncheck.com
- https://github.com/juspay/hyperswitch/blob/2026.09.21.0/crates/router/src/core/payouts/hel... disclosure@vulncheck.com
- https://github.com/juspay/hyperswitch/blob/v1.128.0/crates/router/src/services/authenticat... disclosure@vulncheck.com
- https://github.com/juspay/hyperswitch/commit/607b15fcc4b7dae71c2aafb8c004eea333ac6fd8 disclosure@vulncheck.com
- https://github.com/juspay/hyperswitch/commit/f1144ec5c7e38b3b048fe797fad57e743041f345 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/hyperswitch-through-1.128.0-missing-authorization-in-... disclosure@vulncheck.com