OpenWA: VIEWER API keys can read WhatsApp group invite codes

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-91161
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-24 17:17:09 UTC
Updated2026-09-30 16:42:45 UTC
DescriptionOpenWA is a free, open source, self-hosted WhatsApp API gateway. Prior to 0.23.5, the GET /api/sessions/{sessionId}/groups/{groupId}/invite-code endpoint and the GroupGetInviteCode MCP tool have no OPERATOR role requirement, allowing a valid VIEWER key scoped to a session to retrieve an active group invite code. The invite code is a transferable WhatsApp bearer capability, so an external account can join a group administered by the session without an OpenWA credential, gain read and post access to the group, and retain membership after the VIEWER key is revoked. Affected deployments are those that issue VIEWER keys to parties who should not be able to add accounts to administered groups; OPERATOR and ADMIN access is intended. This issue is fixed in version 0.23.5.

Risk And Classification

Primary CVSS: v3.1 6.4 MEDIUM from [email protected]

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

Problem Types: CWE-863 | CWE-863 CWE-863: Incorrect Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Rmyndharis OpenWA affected < 0.23.5 Not specified

References

ReferenceSourceLinkTags
github.com/rmyndharis/OpenWA/commit/d66439db9653c7aa7cbfb763003c8d3cbc8f... [email protected] github.com
github.com/rmyndharis/OpenWA/commit/a888a0121543426d4e1bf55f9edaed8306ae... [email protected] github.com
github.com/rmyndharis/OpenWA/security/advisories/GHSA-45fh-xj7x-vj2x [email protected] github.com
github.com/rmyndharis/OpenWA/pull/1572 [email protected] github.com
github.com/rmyndharis/OpenWA/releases/tag/v0.23.5 [email protected] github.com
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