CVE-2026-55994— Apache Camel Iggy: The inbound consumer maps externally-supplied Iggy message user-headers into the Exchange without a HeaderFilterStrategy, allowing injection of Camel control headers - enabling control over internal behaviour

Apache Camel Iggy: The inbound consumer maps externally-supplied Iggy message user-headers into the Exchange without a HeaderFilterStrategy, allowing injection of Camel control headers - enabling control over internal behaviour

Improper Input Validation, Exposure of Sensitive Information to an Unauthorized Actor, Server-Side Request Forgery (SSRF) vulnerability in Apache Camel in Iggy component. The camel-iggy consumer mapped the user-headers of inbound Iggy messages into the Camel Exchange header map without applying any HeaderFilterStrategy (IggyFetchRecords copied the message user-headers straight into the Exchange). Because nothing blocked the Camel header namespace, an actor able to publish to the consumed Iggy stream/topic could set Camel-internal control headers - including CamelHttpUri (Exchange.HTTP_URI) - simply by supplying them as message user-headers. In a route where the Iggy consumer feeds a downstream HTTP producer, the injected CamelHttpUri redirects the server-side HTTP request to an attacker-chosen destination (server-side request forgery - for example to an internal service or a cloud metadata endpoint). In addition, the HTTP producer resolves Camel property placeholders on the resulting (attacker-controlled) URI, so placeholders embedded in the injected value - such as an environment-variable reference, an application property, or a vault reference - are resolved to their real values and sent to the attacker, disclosing environment variables, application properties and vault secrets. This issue affects Apache Camel: from 4.17.0 before 4.18.3, from 4.19.0 before 4.21.0. Users are recommended to upgrade to version 4.21.0, which fixes the issue. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.3. The fix adds a dedicated IggyHeaderFilterStrategy (and a headerFilterStrategy endpoint option) that filters the Camel header namespace case-insensitively on inbound mapping, so externally-supplied Camel* / camel* headers are no longer copied into the Exchange. For deployments that cannot upgrade immediately, strip the Camel control headers from the inbound message before they reach any downstream producer (for example removeHeaders('Camel*') and removeHeaders('camel*') at the start of the route), restrict who can publish to the consumed Iggy stream/topic, and avoid bridging an untrusted consumer directly into an HTTP producer whose target URI can be driven from message headers.

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输入验证不恰当

Apache Camel Iggy 输入验证错误漏洞

Apache Apache Camel Iggy是美国Apache基金会的一款集成路由和转换规则的中间件框架。 Apache Camel Iggy存在安全漏洞，该漏洞源于输入验证不当，camel-iggy消费者在将入站Iggy消息的用户标头映射到Camel Exchange标头映射时未应用任何HeaderFilterStrategy，导致能够发布到所消费的Iggy流/主题的攻击者可以设置Camel内部控制标头（包括CamelHttpUri），从而在路由中重定向服务器端HTTP请求到攻击者选择的服务器端请求

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