CVE-2026-72535Network attack vector

Unauthenticated billing access via unchecked GraphQL mutation

Published Aug 11, 2026 · Updated Aug 11, 2026

Missing authentication in Chaskiq through commit 46dfdd1 allows remote attackers to create Stripe portal sessions for any tenant. The stripeCustomerPortal GraphQL mutation calls Stripe's portal-session creation API before authenticating the caller or verifying tenant authorization. Network access to the GraphQL endpoint is sufficient to expose and modify the selected tenant's subscription and billing data without credentials.

CVSS severity8.6
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Chaskiq through commit 46dfdd1 allows remote attackers to create Stripe portal sessions for any tenant. The stripeCustomerPortal GraphQL mutation calls Stripe's portal-session creation API before authenticating the caller or verifying tenant authorization. Network access to the GraphQL endpoint is sufficient to expose and modify the selected tenant's subscription and billing data without credentials.

The record

CVE
CVE-2026-72535
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
Chaskiq
Product
Chaskiq
Classifications
CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=46dfdd1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Chaskiq · Chaskiqversion=0 <=46dfdd1

Published CVSS scores

8.6SentinelOneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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