Vulnerability-Lookup

CVE-2026-74244 (GCVE-0-2026-74244)

Vulnerability from cvelistv5 – Published: 2026-08-14 22:43 – Updated: 2026-08-14 22:43

Title

Quay: stripe webhook accepts forged events without signature verification in quay

Summary

A flaw was found in Red Hat Quay's Stripe billing webhook handler. This vulnerability allows an unauthenticated attacker to forge billing events by sending crafted JSON requests to the `/webhooks/stripe` endpoint without validating the Stripe-Signature header. Successful exploitation can lead to the unauthorized resetting of a namespace's build quota to its maximum and trigger unsolicited billing emails to namespace administrators.

Severity

5.9 (Medium)


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

CWE

CWE-347 - Improper Verification of Cryptographic Signature

Assigner

redhat

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-74244	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2516143	issue-trackingx_refsource_REDHAT

Impacted products

2 products

Vendor	Product	Version
Red Hat	Red Hat OpenShift Update Service	cpe:/a:redhat:openshift_update_service:5
Red Hat	Red Hat Quay 3	cpe:/a:redhat:quay:3

Date Public

2026-08-14 00:00

Credits

Red Hat would like to thank meifukun (https://github.com/meifukun) for reporting this issue.

Show details on NVD website

JSON

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          "cpes": [
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          "packageName": "quay/quay-rhel8",
          "product": "Red Hat Quay 3",
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        }
      ],
      "metrics": [
        {
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        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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        {
          "name": "RHBZ#2516143",
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      "title": "Quay: stripe webhook accepts forged events without signature verification in quay",
      "workarounds": [
        {
          "lang": "en",
          "value": "To mitigate this vulnerability, restrict network access to the `/webhooks/stripe` endpoint in Red Hat Quay. Configure network firewalls to allow connections to this endpoint only from trusted Stripe IP addresses or block access if Stripe billing integration is not utilized. This prevents unauthenticated attackers from forging billing events. Ensure any network changes are applied and services are reloaded or restarted as necessary for the changes to take effect, which may temporarily impact Quay service availability."
        }
      ],
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      "title": "quay: Stripe webhook accepts forged events without signature verification in Quay",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74244.json",
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}

GHSA-FGQ8-MWJV-6335

Vulnerability from github – Published: 2026-08-15 00:31 – Updated: 2026-08-15 00:31

Details

A flaw was found in Red Hat Quay's Stripe billing webhook handler. This vulnerability allows an unauthenticated attacker to forge billing events by sending crafted JSON requests to the /webhooks/stripe endpoint without validating the Stripe-Signature header. Successful exploitation can lead to the unauthorized resetting of a namespace's build quota to its maximum and trigger unsolicited billing emails to namespace administrators.

Severity

5.9 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-74244"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-14T23:16:34Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in Red Hat Quay\u0027s Stripe billing webhook handler. This vulnerability allows an unauthenticated attacker to forge billing events by sending crafted JSON requests to the `/webhooks/stripe` endpoint without validating the Stripe-Signature header. Successful exploitation can lead to the unauthorized resetting of a namespace\u0027s build quota to its maximum and trigger unsolicited billing emails to namespace administrators.",
  "id": "GHSA-fgq8-mwjv-6335",
  "modified": "2026-08-15T00:31:24Z",
  "published": "2026-08-15T00:31:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74244"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-74244"
    },
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516143"
    }
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      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-74244 (GCVE-0-2026-74244)

GHSA-FGQ8-MWJV-6335

Tags

Sightings

Nomenclature