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CVE-2026-49097 Apache CVE debrief

The Apache Camel IRC component has an Improper Input Validation and Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection) vulnerability. This issue allows an attacker to redirect messages intended for a configured IRC channel to an arbitrary channel or user, potentially exfiltrating message content or delivering messages that appear to come from the bot. The vulnerability affects Apache Camel versions from 4.0.0 before 4.14.8, from 4.15.0 before 4.18.3, and from 4.19.0 before 4.21.0. Users of Apache Camel, particularly those using the IRC component in routes that bridge HTTP consumers into IRC producers, should be aware of this vulnerability and take necessary actions to mitigate it.

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, particularly those using the IRC component in routes that bridge HTTP consumers into IRC producers, should be aware of this vulnerability. This issue affects Apache Camel versions from 4.0.0 before 4.14.8, from 4.15.0 before 4.18.3, and from 4.19.0 before 4.21.0.

Technical summary

The camel-irc producer in Apache Camel chooses the destination of an outgoing IRC message from the irc.sendTo Exchange header. When this header is present, it overrides the channel list configured on the endpoint, and the message is sent only to the specified destination. The component's control headers use plain, non-Camel-prefixed values, allowing them to pass from an inbound HTTP request into the Exchange. In a route bridging an HTTP consumer into an irc: producer, any HTTP client can set the irc.sendTo header and redirect a message to an arbitrary IRC channel or user.

Defensive priority

High

Recommended defensive actions

  • Upgrade to Apache Camel version 4.21.0 or later
  • For users on the 4.14.x LTS releases stream, upgrade to 4.14.8
  • For users on the 4.18.x releases stream, upgrade to 4.18.3
  • Strip the irc.* headers from any untrusted ingress before the irc: producer
  • Set the IRC destination from a trusted source
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-07-06T09:16:38.240Z and was last modified on 2026-07-08T03:12:14.387Z. 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. The CVE record and NVD entry provide details on the vulnerability, but may not cover all potential impacts or affected systems. Additional verification is recommended.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-49097 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-49097

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

  • CVE-2026-49097 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-49097

    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.