Convoy: Cross-Tenant Source IDOR Leaks Plaintext Message Broker Credentials (CVE-2026-81505) | HOL Guard CVE

High severityCVE-2026-81505GHSA-P5VG-V7MJ-F6Q4

Convoy: Cross-Tenant Source IDOR Leaks Plaintext Message Broker Credentials

Answer in brief

CVE-2026-81505 records a High severity vulnerability in Convoy: Cross-Tenant Source IDOR Leaks Plaintext Message Broker Credentials. The current sources do not mark it as known exploited. The current feed maps frain-dev/convoy (generic), github.com/frain-dev/convoy (go). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 18, 2026Updated Sep 18, 2026Source checked Sep 18, 2026First seen by HOL Sep 18, 2026Material review Sep 18, 2026

Upstream Advisory

Key facts

Risk: High
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps frain-dev/convoy (generic), github.com/frain-dev/convoy (go). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
frain-dev/convoygeneric	< 26.6.8	Not reported
github.com/frain-dev/convoygo	<0.9.3-0.20260724092134-1cc67cd16fb1	0.9.3-0.20260724092134-1cc67cd16fb1

Recommended response

Check inventory. Check lockfiles and deployed manifests for frain-dev/convoy, github.com/frain-dev/convoy.
Review the reported fix. Update github.com/frain-dev/convoy to 0.9.3-0.20260724092134-1cc67cd16fb1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 18, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 18, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 18, 2026

Sources and claim methodology

Upstream source description

Convoy is a cloud native webhooks gateway. Prior to 26.6.8, Convoy's GET /api/v1/projects/{projectID}/sources/{sourceID} endpoint authorizes access to the project in the URL, but Handler.GetSource calls sources.Service.FindSourceByID() and fetches the Source only by sourceID without confirming that its ProjectID matches the authorized project. An authenticated user or project-scoped API key holder can substitute another tenant's Source identifier and receive that Source's complete record, including unredacted AMQP, Kafka, SQS, or Google PubSub credentials. The list endpoint remains project-scoped; the single-item Source lookup is affected. This issue is fixed in version 26.6.8.

Quoted source text, attributed separately from HOL analysis.