Vulnerability-Lookup

GHSA-R242-WMJ3-V8WV

Vulnerability from github – Published: 2026-10-30 12:31 – Updated: 2026-10-30 12:31

Details

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.

Severity

5.9 (Medium)


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

8.2 (High)


                  
                    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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-119421"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-30T12:16:38Z",
    "severity": "HIGH"
  },
  "details": "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\u0027s publishable key and a payout_id can confirm payouts and overwrite amount, currency, connector, and routing fields to trigger unauthorized merchant payouts.",
  "id": "GHSA-r242-wmj3-v8wv",
  "modified": "2026-10-30T12:31:18Z",
  "published": "2026-10-30T12:31:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119421"
    },
    {
      "type": "WEB",
      "url": "https://github.com/juspay/hyperswitch/commit/607b15fcc4b7dae71c2aafb8c004eea333ac6fd8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/juspay/hyperswitch/commit/f1144ec5c7e38b3b048fe797fad57e743041f345"
    },
    {
      "type": "WEB",
      "url": "https://abraxaslabs.tech/research/hyperswitch-payout-confirm-secret"
    },
    {
      "type": "WEB",
      "url": "https://github.com/juspay/hyperswitch"
    },
    {
      "type": "WEB",
      "url": "https://github.com/juspay/hyperswitch/blob/2026.09.21.0/crates/router/src/core/payouts/helpers.rs#L1465"
    },
    {
      "type": "WEB",
      "url": "https://github.com/juspay/hyperswitch/blob/v1.128.0/crates/router/src/services/authentication.rs#L5921-L5927"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/hyperswitch-through-1.128.0-missing-authorization-in-payout-confirmation"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "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/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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-119421 (GCVE-0-2026-119421)

Vulnerability from cvelistv5 – Published: 2026-10-30 11:30 – Updated: 2026-10-30 15:55

Title

Hyperswitch through 1.128.0 Missing Authorization in Payout Confirmation

Summary

Severity

8.2 (High)


                        
                          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

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-30 15:20 UTC

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 7156 records in the last 180 days details

References

7 references

URL	Tags
https://github.com/juspay/hyperswitch/commit/f114…	patch
https://github.com/juspay/hyperswitch/commit/607b…	patch
https://github.com/juspay/hyperswitch/blob/v1.128…	technical-description
https://github.com/juspay/hyperswitch/blob/2026.0…	technical-description
https://abraxaslabs.tech/research/hyperswitch-pay…	third-party-advisory
https://github.com/juspay/hyperswitch	product
https://www.vulncheck.com/advisories/hyperswitch-…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
juspay	hyperswitch	Affected: 0 , ≤ 1.128.0 (semver) Affected: 0 , < 2026.10.19.0 (custom)

Date Public

2026-09-30 00:00

Credits

Abraxas Labs Sakil Mostak

Show details on NVD website

JSON

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                    "Technical Impact": "partial"
                  }
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                "role": "CISA Coordinator",
                "timestamp": "2026-10-30T15:20:56.954253Z",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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