Apache Camel-Iggy: The inbound consumer maps externally-supplied Iggy message user-headers into the Exchange without a HeaderFilterStrategy

Exploitation

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

CVSS

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

EPSS

• CVE-2026-55994: 0.63% estimated exploitation activity in the next 30 days; percentile 50.03 (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, 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.HTTPURI) - 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…

Published by the source

6 Jul 2026, 09:30 UTC

Last modified by the source

28 Aug 2026, 20:09 UTC

Source last checked

26 Oct 2026, 16:55 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-pw9q-pq7c-rfqw

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# Patch Next advisory brief: CVE-2026-55994

Advisory: Apache Camel-Iggy: The inbound consumer maps externally-supplied Iggy message user-headers into the Exchange without a HeaderFilterStrategy
IDs: CVE-2026-55994, GHSA-pw9q-pq7c-rfqw
Record: https://patchnext.com/advisories/cve-2026-55994 (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: High (CVSS 7.5)
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-iggy 4.21.0, 4.18.3. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.apache.camel:camel-iggy: affected >= 4.17.0, < 4.18.3; >= 4.19.0, < 4.21.0; fixed in 4.21.0, 4.18.3

## Suggested inspection (read-only)
- Maven org.apache.camel:camel-iggy: 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-iggy.
- 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-pw9q-pq7c-rfqw (GitHub-reviewed advisory GHSA-pw9q-pq7c-rfqw lists affected ranges: Maven org.apache.camel:camel-iggy >=4.17.0 =4.19.0 <4.21.0)

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