Exposure of Data Element to Wrong Session Affecting org.apache.camel:camel-as2-api package, versions [4.0.0,4.18.5)[4.19.0,4.22.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGAPACHECAMEL-21427928
- published22 Oct 2026
- disclosed19 Oct 2026
- creditClaude Security
Introduced: 19 Oct 2026
NewCVE-2026-85296 (opens in a new tab)How to fix?
Upgrade org.apache.camel:camel-as2-api to version 4.18.5, 4.22.1 or higher.
Overview
Affected versions of this package are vulnerable to Exposure of Data Element to Wrong Session via the ResponseMDN handler in the AS2 component. In a deployment serving multiple trading partners with dynamic per-request keys, ordinary concurrent or successive AS2 requests can cause ResponseMDN to reuse signing material loaded from another request’s HttpContext, so an MDN for one partner’s exchange is signed with another partner’s private key. This misattributes the receipt and uses one partner’s signing material for another partner’s exchange; it does not disclose the private key.
Workarounds
- Run a separate Camel context for each trading partner to prevent signing material from being shared across partners.