CVE-2026-85296
MediumCVSS 6.5Summary
An exposure of data element to wrong session vulnerability exists in the Apache Camel AS2 component. Signing material for an individual request was stored in state shared across requests, so with multiple trading partners a Message Disposition Notification could be signed with another partner's key.
Risk Assessment
In typical multi-partner AS2 deployments, ordinary concurrent traffic can cause cross-partner key confusion, attributing a receipt to the wrong partner and using one partner's signing material while handling another's exchange. This undermines trust in signatures and partner settlements.
Recommendation
Upgrade Apache Camel to 4.23.0, or to 4.18.5 for 4.18.x LTS or 4.22.1 for 4.22.x LTS. If immediate upgrade is not possible, run a separate Camel context per trading partner so that no signing material is shared.
Other vulnerabilities in Apache Camel
See all- CVE-2026-91858Medium
FopProducer transforms the incoming XSL-FO body by creating a TransformerFactory via TransformerFactory.newInstance() and enabling only FEATURE_SECURE_PROCESSING. When a third-party JAXP TransformerFactory such as Saxon-HE is on the classpath, that feature alone does not restrict external resource access, so an external DTD or entity declared in the XSL-FO document is resolved and expanded. An external sender can therefore read files readable by the Camel process and cause it to issue requests to hosts the document names.
- CVE-2026-88901High
Improper Restriction of XML External Entity Reference (XXE) vulnerability in the Smooks component (camel-smooks) of Apache Camel. The default Woodstox SAX parser resolves external entities and loads external DTDs, allowing an attacker to read local files or issue requests to internal network locations via the XML body. Affects versions from 4.7.0 before 4.18.5 and from 4.19.0 before 4.22.1.
- CVE-2026-85317Medium
A use of cache containing sensitive information vulnerability exists in the Apache Camel HTTP component. The JVM-global OAuth2 token cache key omitted the requested scope, resource indicator and token endpoint, so two endpoints differing only in those fields shared a cache entry and an endpoint could be served a token minted for a different scope, resource or authorization server.
- CVE-2026-85316Medium
An insufficient granularity of access control vulnerability exists in the Apache Camel Platform HTTP component. The component decided proxy mode by testing whether the configured path started with the string "proxy" rather than matching exactly, so endpoints such as proxyStatus or proxy-config became proxies without the route author's intent and forwarded requests onward.
- CVE-2026-85315Medium
A generation of error message containing sensitive information vulnerability exists in the Apache Camel gRPC component. When a route behind a gRPC consumer failed, the exception message was placed into the gRPC status description, which is transmitted to the calling client, so an external caller could read internal error messages including class and package names, paths, host names and connection details.
- CVE-2026-85314Medium
An improper input validation vulnerability exists in the Apache Camel Mail component. The MimeMultipart data format retained an unfiltered path where unmarshalling a multipart message mapped mail.smtp headers onto the Exchange with no filter applied, so an external sender could set them and influence how a downstream mail producer connects and sends.
- CVE-2026-85313Medium
A permissive cross-domain policy with untrusted domains vulnerability exists in the Apache Camel Jetty component. Setting enableCORS installed Jetty's CrossOriginFilter with stock defaults accepting every origin and allowing credentials, so a page on any origin could make credentialed cross-origin requests and read responses.
- CVE-2026-85312Medium
An improper input validation vulnerability exists in the Apache Camel Core component. The saga processor consulted a header named Long-Running-Action without a Camel prefix, so an external sender could supply it on an inbound message and name the saga the exchange joined, attaching their request to a long-running action started by someone else.
- CVE-2026-85301Medium
An improper authentication vulnerability exists in the Apache Camel Keycloak component. The security processor validated the token issuer only when the introspection response contained an iss claim; when absent, the check was skipped rather than treated as a failure, potentially allowing tokens from an unintended issuer to be accepted.
- CVE-2026-85300Medium
An incorrect default permissions vulnerability exists in the Apache Camel PQC component. When writing generated key material to disk, the component used the process default umask rather than restricting the file to its owner, potentially allowing other local accounts to read the private key.
Original NVD description (English source)
Exposure of Data Element to Wrong Session vulnerability in Apache Camel AS2 component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. Signing material belonging to an individual request was stored in state that is shared across requests rather than confined to the request being processed. Where a deployment serves more than one trading partner, concurrent or successive requests could therefore observe each other's material, and a Message Disposition Notification could be signed with the key of a partner other than the one the receipt was for. The result is cross-partner key confusion: a receipt attributable to the wrong partner, and one partner's signing material used while handling another partner's exchange. AS2 deployments are typically multi-partner by design, so the condition is reached by ordinary concurrent traffic rather than by anything the attacker must arrange. Upgrade to Apache Camel 4.23.0, which fixes the issue. Users on the 4.18.x LTS releases stream should upgrade to 4.18.5. Users on the 4.22.x LTS releases stream should upgrade to 4.22.1. Per-request signing keys are now confined to the request being processed in ResponseMDN. For deployments that cannot upgrade immediately, run a separate Camel context per trading partner so that no signing material is shared between them.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

