EUVD-2026-64960
GHSA-vvwm-3j43-7pfm
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Network-accessible endpoint, no auth required, structured-mode POST sufficient; scope changes because SSRF reaches downstream systems beyond the vulnerable Camel instance.
Primary rating from Vendor (apache).
CVSS VectorVendor: apache
Lifecycle Timeline
3Blast Radius
ecosystem impact- 7 maven packages depend on org.apache.camel:camel-knative (3 direct, 4 indirect)
Ecosystem-wide dependent count for version 3.15.0.
DescriptionCVE.org
Improper Input Validation, Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in Apache Camel Knative component
The Knative consumer in camel-knative maps inbound CloudEvent attributes onto Camel message headers. In binary content mode the HTTP-header path filters Camel-internal headers through KnativeHttpHeaderFilterStrategy, but in structured content mode (Content-Type application/cloudevents+json) the CloudEvent extension fields are read directly from the JSON body and every extension key is copied into the Exchange headers without applying any HeaderFilterStrategy (CloudEventProcessors, spec versions 1.0, 1.0.1 and 1.0.2). As a result, an unauthenticated attacker can inject Camel-internal headers (e.g. CamelHttpUri, CamelHttpPath, CamelFileName) via a structured-mode CloudEvent request, matched case-insensitively against Camel's header map. When a route forwards messages from a Knative consumer to a header-driven component such as camel-http or camel-file, the injected headers override configured values, enabling server-side request forgery (SSRF), path traversal or message-dispatch redirection depending on the route. This is an incomplete fix of the inbound header filtering previously added for the binary content-mode path, and is the same pattern addressed in camel-cxf/camel-knative (CVE-2026-47323), camel-undertow (CVE-2025-30177), the broader incoming-header filter (CVE-2025-27636 and CVE-2025-29891), and the non-HTTP strategies (CVE-2026-40453).
This issue affects Apache Camel: from 3.15.0 before 4.14.9, from 4.15.0 before 4.18.4, from 4.19.0 before 4.21.0.
Users are recommended to upgrade to version 4.22.0, which fixes the issue. If users are on the 4.18.x LTS releases stream, then they are suggested to upgrade to 4.18.4. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.9. The non-LTS releases 4.15.0 through 4.17.0 and 4.19.0 through 4.21.0 are affected but do not receive a maintenance fix; users on those versions should upgrade to 4.18.4 or 4.22.0.
AnalysisAI
Header injection via structured-mode CloudEvents in Apache Camel's Knative consumer enables unauthenticated SSRF, path traversal, and message-dispatch redirection against routes that forward to header-driven components. The flaw exists because CloudEvent extension fields in structured content mode (Content-Type: application/cloudevents+json) are copied directly into Camel Exchange headers without applying the KnativeHttpHeaderFilterStrategy that correctly guards the binary content-mode path - an incomplete fix of the same filter-bypass pattern addressed across multiple related CVEs (CVE-2025-27636, CVE-2025-29891, CVE-2025-30177, CVE-2026-40453, CVE-2026-47323). …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires all of the following: (1) The target Camel application uses the camel-knative component as a consumer - deployments not using Knative eventing are not affected. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | No vendor-supplied CVSS vector or score is present in the input data, so risk signals are limited to the description and patch metadata. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to Apache Camel 4.22.0, which is the primary recommended fix per the vendor advisory at https://camel.apache.org/security/CVE-2026-63621.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Apache Camel
View allRemote code execution in Apache Camel's camel-coap component (versions 4.14.0-4.14.5, 4.18.0 before 4.18.1, and 4.19.0)
Unsafe Java deserialization in Apache Camel's camel-infinispan component allows arbitrary code execution when the ProtoS
Header-injection in the Apache Camel camel-atmosphere-websocket producer lets an external sender hijack WebSocket messag
Header-filter bypass in the Apache Camel Undertow component (4.11.0-4.14.8, 4.15.0-4.18.3, and 4.19.0-4.21.x) lets remot
Remote code execution in Apache Camel 3.18.0-4.14.5 and 4.15.0-4.18.1 stems from CXF and Knative HeaderFilterStrategy im
Message header injection in Apache Camel's camel-mail component (3.0.0 before 4.14.6 and 4.15.0 before 4.18.1) lets an a
Remote code execution via unsafe Java deserialization affects the camel-pqc component of Apache Camel 4.18.0-4.18.2 and
Unsafe Java deserialization in Apache Camel's camel-consul component (ConsulRegistry / ConsulRegistryUtils.deserialize)
Cypher injection in Apache Camel's camel-neo4j producer allows attackers who control JSON key names in the CamelNeo4jMat
Remote code execution in the Apache Camel camel-hazelcast component allows an attacker who can join or reach the Hazelca
Remote code execution in Apache Camel's camel-vertx-http component (4.0.0-4.14.7, 4.15.0-4.18.2, 4.19.0) arises when a p
Blind out-of-band data exfiltration in Apache Camel 4.14.0-4.20.x arises because the default ObjectInputFilter pattern b
Same weakness CWE-20 – Improper Input Validation
View allSame technique Path Traversal
View allVendor StatusVendor
Share
External POC / Exploit Code
Leaving vuln.today