Apache Camel-Dapr: The Dapr Pub/Sub consumer copied the inbound CloudEvent's pub/sub-name and topic into producer-direction routing headers

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

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

EPSS

• CVE-2026-49086: 0.68% estimated exploitation activity in the next 30 days; percentile 52.52 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Improper Input Validation, Unintended Proxy or Intermediary ('Confused Deputy') vulnerability in Apache Camel DAPR component. The camel-dapr Dapr Pub/Sub consumer (DaprPubSubConsumer) copied two fields from each inbound CloudEvent - its Pub/Sub component name and its topic - into the CamelDaprPubSubName and CamelDaprTopic Exchange headers. These two headers are producer-direction routing headers: when the route republishes through a Dapr producer, DaprConfigurationOptionsProxy reads them back and prefers them over the destination configured on the endpoint. As a result, in a route that consumes from one Dapr Pub/Sub topic and republishes to another (for example from('dapr-pubsub:p:t').to('dapr-pubsub:p:other')), an actor able to publish a message to the subscribed topic could set the CloudEvent's pub/sub-name and topic to values of their choosing and cause the re-published message to be delivered to an arbitrary Dapr Pub/Sub component and topic instead of the configured destination -…

Published by the source

6 Jul 2026, 09:30 UTC

Last modified by the source

28 Aug 2026, 20:15 UTC

Source last checked

26 Oct 2026, 16:55 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-583r-f84w-33g7

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# Patch Next advisory brief: CVE-2026-49086

Advisory: Apache Camel-Dapr: The Dapr Pub/Sub consumer copied the inbound CloudEvent's pub/sub-name and topic into producer-direction routing headers
IDs: CVE-2026-49086, GHSA-583r-f84w-33g7
Record: https://patchnext.com/advisories/cve-2026-49086 (revision 1, source checked 26 Oct 2026, 16:55 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.apache.camel:camel-dapr 4.21.0, 4.18.3, 4.14.8. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.apache.camel:camel-dapr: affected >= 4.12.0, < 4.14.8; >= 4.15.0, < 4.18.3; >= 4.19.0, < 4.21.0; fixed in 4.21.0, 4.14.8, 4.18.3

## Suggested inspection (read-only)
- Maven org.apache.camel:camel-dapr: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.apache.camel:camel-dapr.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-583r-f84w-33g7 (GitHub-reviewed advisory GHSA-583r-f84w-33g7 lists affected ranges: Maven org.apache.camel:camel-dapr >=4.12.0 =4.15.0 =4.19.0 <4.21.0)

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