CVE-2026-55993
published 2026-07-06CVE-2026-55993: Improper Input Validation, Exposure of Sensitive Information to an Unauthorized Actor, Server-Side Request Forgery (SSRF) vulnerability in Apache Camel in…
PriorityP351high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
0.86%
58.0th percentile
Improper Input Validation, Exposure of Sensitive Information to an Unauthorized Actor, Server-Side Request Forgery (SSRF) vulnerability in Apache Camel in Atmosphere Websocket Component.
The camel-atmosphere-websocket consumer mapped inbound WebSocket query parameters into the Camel Exchange header map without applying any HeaderFilterStrategy (WebsocketConsumer.sendEventNotification() iterates the query-string map collected in WebsocketConsumer.service() and copies each entry into the Exchange). Because nothing blocked the Camel header namespace, a client connecting to the WebSocket endpoint could set Camel-internal control headers - including CamelHttpUri (Exchange.HTTP_URI) - simply by supplying them as query parameters. In a route where the WebSocket 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. When the WebSocket endpoint is exposed without authentication, this is reachable by an unauthenticated remote attacker.
This issue affects Apache Camel: from 4.0.0 before 4.14.8, from 4.15.0 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 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.8. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.3. The fix makes the consumer apply the HeaderFilterStrategy it already inherits from the HTTP/servlet stack, filteri
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache | camel | >= 4.0.0 < 4.14.8 | 4.14.8 |
| apache | camel | >= 4.0.0 < 4.14.9 | 4.14.9 |
| apache | camel | >= 4.15.0 < 4.18.3 | 4.18.3 |
| apache | camel | >= 4.15.0 < 4.18.4 | 4.18.4 |
| apache | camel | >= 4.19.0 < 4.21.0 | 4.21.0 |
| apache | camel | >= 4.19.0 < 4.22.0 | 4.22.0 |
| apache_software_foundation | apache_camel | >= 4.0.0 < 4.14.9 | 4.14.9 |
| apache_software_foundation | apache_camel | >= 4.15.0 < 4.18.4 | 4.18.4 |
| apache_software_foundation | apache_camel | >= 4.19.0 < 4.22.0 | 4.22.0 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
ghsa7.5HIGH
vendor_redhat7.5HIGH
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GHSA
Improper input validation vulnerability in Apache Camel Atmosphere Websocket component.
ghsa_unreviewed·2026-08-24·CVSS 7.5
CVE-2026-71300 [HIGH] CWE-20 Improper input validation vulnerability in Apache Camel Atmosphere Websocket component.
Improper input validation vulnerability in Apache Camel Atmosphere Websocket component.
This issue affects Apache Camel: from 4.0.0 before 4.14.9, from 4.15.0 before 4.18.4, from 4.19.0 before 4.22.0.
The camel-atmosphere-websocket producer selects which connected WebSocket peers a message is delivered to through Exchange headers, and the string values of those headers sat outside the Camel namespace: websocket.connectionKey and websocket.connectionKey.list, along with websocket.sendToAll, websocket.eventType and websocket.errorType. WebsocketEndpoint extends ServletEndpoint and so inherits HttpHeaderFilterStrategy, which filters only the Camel and camel prefixes; the dotted names therefore fell outside the filtered namespace and were admitted in both directions by every HTTP-family co
GHSA
Apache Camel-Atmosphere-Websocket: WebSocket dispatch header injection - the producer selected its target peers through Exchange headers whose names sat outside the filtered Camel namespace
ghsa·2026-08-24·CVSS 7.5
CVE-2026-71300 [HIGH] CWE-20 Apache Camel-Atmosphere-Websocket: WebSocket dispatch header injection - the producer selected its target peers through Exchange headers whose names sat outside the filtered Camel namespace
Apache Camel-Atmosphere-Websocket: WebSocket dispatch header injection - the producer selected its target peers through Exchange headers whose names sat outside the filtered Camel namespace
Improper input validation vulnerability in Apache Camel Atmosphere Websocket component.
This issue affects Apache Camel: from 4.0.0 before 4.14.9, from 4.15.0 before 4.18.4, from 4.19.0 before 4.22.0.
The camel-atmosphere-websocket producer selects which connected WebSocket peers a message is delivered to through Exchange headers, and the string values of those headers sat outside the Camel namespace: websocket.connectionKey and websocket.connectionKey.list, along with websocket.sendToAll, websocket.eventType and websocket.errorType. WebsocketEndpoint extends ServletEndpoint and so inherits HttpHeade
GHSA
Improper Input Validation, Exposure of Sensitive Information to an Unauthorized Actor, Server-Side Request Forgery (SSRF) vulnerability in Apache Camel in Atmosphere Websocket Component.
ghsa_unreviewed·2026-07-06
CVE-2026-55993 [HIGH] CWE-20 Improper Input Validation, Exposure of Sensitive Information to an Unauthorized Actor, Server-Side Request Forgery (SSRF) vulnerability in Apache Camel in Atmosphere Websocket Component.
Improper Input Validation, Exposure of Sensitive Information to an Unauthorized Actor, Server-Side Request Forgery (SSRF) vulnerability in Apache Camel in Atmosphere Websocket Component.
The camel-atmosphere-websocket consumer mapped inbound WebSocket query parameters into the Camel Exchange header map without applying any HeaderFilterStrategy (WebsocketConsumer.sendEventNotification() iterates the query-string map collected in WebsocketConsumer.service() and copies each entry into the Exchange). Because nothing blocked the Camel header namespace, a client connecting to the WebSocket endpoint could set Camel-internal control headers - including CamelHttpUri (Exchange.HTTP_URI) - simply by supplying them as query parameters. In a route where the WebSocket consumer feeds a downstream HTTP p
GHSA
Apache Camel-Atmosphere-Websocket: The inbound consumer maps externally-supplied WebSocket query parameters into the Exchange without a HeaderFilterStrategy
ghsa·2026-07-06
CVE-2026-55993 [HIGH] CWE-20 Apache Camel-Atmosphere-Websocket: The inbound consumer maps externally-supplied WebSocket query parameters into the Exchange without a HeaderFilterStrategy
Apache Camel-Atmosphere-Websocket: The inbound consumer maps externally-supplied WebSocket query parameters into the Exchange without a HeaderFilterStrategy
Improper Input Validation, Exposure of Sensitive Information to an Unauthorized Actor, Server-Side Request Forgery (SSRF) vulnerability in Apache Camel in Atmosphere Websocket Component.
The camel-atmosphere-websocket consumer mapped inbound WebSocket query parameters into the Camel Exchange header map without applying any HeaderFilterStrategy (WebsocketConsumer.sendEventNotification() iterates the query-string map collected in WebsocketConsumer.service() and copies each entry into the Exchange). Because nothing blocked the Camel header namespace, a client connecting to the WebSocket endpoint could set Camel-internal control headers
VulDB
Apache Camel up to 4.14.8/4.18.2/4.20.x Camel-Atmosphere-Websocket server-side request forgery
vuldb·2026-07-05
CVE-2026-55993 [CRITICAL] Apache Camel up to 4.14.8/4.18.2/4.20.x Camel-Atmosphere-Websocket server-side request forgery
A vulnerability was found in Apache Camel up to 4.14.8/4.18.2/4.20.x and classified as critical. This affects an unknown part of the component Camel-Atmosphere-Websocket. The manipulation results in server-side request forgery.
This vulnerability is reported as CVE-2026-55993. The attack can be launched remotely. No exploit exists.
It is suggested to upgrade the affected component.
Red Hat
org.apache.camel/camel-atmosphere-websocket: Apache Camel Atmosphere Websocket: Information Disclosure and Denial of Service via Header Injection
vendor_redhat·2026-08-24·CVSS 7.5
CVE-2026-71300 [HIGH] CWE-639 org.apache.camel/camel-atmosphere-websocket: Apache Camel Atmosphere Websocket: Information Disclosure and Denial of Service via Header Injection
org.apache.camel/camel-atmosphere-websocket: Apache Camel Atmosphere Websocket: Information Disclosure and Denial of Service via Header Injection
Improper input validation vulnerability in Apache Camel Atmosphere Websocket component.
This issue affects Apache Camel: from 4.0.0 before 4.14.9, from 4.15.0 before 4.18.4, from 4.19.0 before 4.22.0.
The camel-atmosphere-websocket producer selects which connected WebSocket peers a message is delivered to through Exchange headers, and the string values of those headers sat outside the Camel namespace: websocket.connectionKey and websocket.connectionKey.list, along with websocket.sendToAll, websocket.eventType and websocket.errorType. WebsocketEndpoint extends ServletEndpoint and so inherits HttpHeaderFilterStrategy, which filters only the Camel
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-07-06
Published