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CVE-2026-49086 Apache CVE debrief

CVE-2026-49086 is an Improper Input Validation, Unintended Proxy or Intermediary vulnerability in Apache Camel DAPR component. The camel-dapr Dapr Pub/Sub consumer copied two fields from each inbound CloudEvent into the CamelDaprPubSubName and CamelDaprTopic Exchange headers. These headers are producer-direction routing headers. 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. This vulnerability allows an attacker to redirect or exfiltrate the message and bypass the route's intended routing and any topic-level access controls in the underlying broker.

Vendor
Apache
Product
Camel
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-06
Original CVE updated
2026-07-08
Advisory published
2026-07-06
Advisory updated
2026-07-08

Who should care

Users of Apache Camel versions 4.12.0 to 4.14.7, 4.15.0 to 4.18.2, and 4.19.0 to 4.20.0 should be aware of this vulnerability and take action to mitigate it. This includes operators, platform administrators, vulnerability management teams, and security teams who need to assess the impact of this vulnerability on their systems and take necessary steps to protect them.

Technical summary

The vulnerability exists in the Dapr Pub/Sub consumer of Apache Camel, where it improperly validates input and acts as an unintended proxy or intermediary. This allows an attacker to manipulate the routing of messages by setting specific headers in the CloudEvent. The issue affects Apache Camel versions 4.12.0 before 4.14.8, 4.15.0 before 4.18.3, and 4.19.0 before 4.21.0. The vulnerability can be exploited by publishing a message to the subscribed topic and setting the CloudEvent's pub/sub-name and topic to values of their choosing.

Defensive priority

Medium

Recommended defensive actions

  • Upgrade to Apache Camel version 4.21.0 or later
  • Remove the CamelDaprPubSubName and CamelDaprTopic headers from the Exchange between the Dapr consumer and any Dapr producer in the route
  • Restrict who can publish to the subscribed Dapr Pub/Sub topic
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
  • Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
  • Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.

Evidence notes

The CVE record was published on 2026-07-06T09:16:38.120Z and was last modified on 2026-07-08T14:53:56.583Z. The NVD entry is currently Analyzed. This information is based on the CVE record and NVD entry. Users should verify the accuracy of this information with the official sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-49086 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-49086

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-49086 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-49086

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.