CVE Catalog

CVE-2026-85296

MediumCVSS 6.5
Published: Translated: NVD NIST

Summary

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

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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