CVE-2026-56253
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedCapgo before 12.128.2 contains an improper access control vulnerability in the public.get_org_members RPC function that allows unauthenticated attackers to enumerate organization members. Attackers can invoke the endpoint using only the public sb_publishable_* key and an organization UUID to retrieve sensitive member information including email addresses, user IDs, roles, and pending invitations.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceCapgo before 12.128.2 has an improper access control vulnerability in the public.get_org_members RPC function that allows unauthenticated enumeration of organization members using only a public sb_publishable_* key and organization UUID, exposing sensitive data including email addresses, user IDs, roles, and pending invitations.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify Capgo installation and versionLocate the Capgo installation (e.g., check package.json, node_modules, or running service) and retrieve the installed version numberAffected if Capgo version is present and is below 12.128.2
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Locate Capgo API keysSearch configuration files, environment variables, or secret storage for keys with the sb_publishable_* prefixAffected if Any sb_publishable_* API keys exist in the environment
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Check for exposed organization UUIDsReview application configuration, logs, or API responses for Capgo organization UUIDs (often found in URLs, configs, or API responses)Affected if Organization UUIDs are present in accessible configuration or API traffic
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Verify RPC endpoint accessibilityAttempt a test request to the public.get_org_members RPC endpoint using only a sb_publishable_* key and organization UUID without providing authentication credentialsAffected if The endpoint returns member data (emails, user IDs, roles, invitations) without requiring authentication
You are affected if Capgo version is below 12.128.2 and your environment exposes sb_publishable_* keys with organization UUIDs that can be used to query the unauthenticated get_org_members RPC endpoint.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpgrade to Capgo version 12.128.2 or later, which remediates the improper access control by ensuring the get_org_members function properly enforces authentication and authorization beyond just accepting public keys.
12.128.2 or later
- Upgrade Capgo to version 12.128.2 or later to address the improper access control vulnerability in the public.get_org_members RPC function
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-56253 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-56253 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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