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CVE-2026-85296— Apache Camel: Camel-AS2 Cross-Partner Signing Key Confusion via Shared Per-Request State

Quick assessment

Affected
Apache Software Foundation Apache Camel
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Camel AS2 组件存在“数据元素暴露至错误会话”漏洞。 受影响版本：Apache Camel 4.0.0 至 4.18.5（不含 4.18.5），以及 4.19.0 至 4.22.1（不含 4.22.1）。 该漏洞的成因在于：属于单个请求的签名材料被存储在跨请求共享的状态中，而非局限于当前正在处理的请求。当部署环境服务多个交易伙伴时，并发或连续到达的请求可能相互观察到彼此的签名材料，导致消息处置通知（MDN）被错误地用其他交易伙伴的私钥进行签名。其后果是引发“跨伙伴密钥混淆”：接收回执被错误归因

CVSS 6.5 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 5

VendorProduct Version RangeStatus
Apache Software Foundation Apache Camel 4.0.0< 4.18.5 affected
4.19.0< 4.22.1 affected
4.18.5 unaffected
4.22.1 unaffected
4.23.0 unaffected
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I. Basic Information for CVE-2026-85296

Vulnerability Information
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Vulnerability Title
Apache Camel: Camel-AS2 Cross-Partner Signing Key Confusion via Shared Per-Request State
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对错误会话暴露数据元素
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Camel 4.0.0 ~ 4.18.5 -

II. Public POCs for CVE-2026-85296

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III. Intelligence Information for CVE-2026-85296

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Patches & Fixes for CVE-2026-85296 (3)

Vendor Advisories for CVE-2026-85296 (2)

Same Patch Batch · Apache Software Foundation · 2026-10-19 · 62 CVEs total

CVE-2026-78162 10.0 CRITICAL Apache Camel: Camel-Hazelcast Managed Instances Missing Java Deserialization Filter (Incom
CVE-2026-88900 8.8 HIGH Apache Camel: Camel-JGroups: Unsafe Java Deserialization of Cluster Messages in the JGroup
CVE-2026-83531 8.8 HIGH Apache Camel: Camel-Dynamic-Router Control Endpoint Compiles Predicate Expressions Supplie
CVE-2026-78165 8.8 HIGH Apache Camel: Camel-Spring-Redis Unfiltered Java Deserialization of Redis Payloads
CVE-2026-80312 8.2 HIGH Apache Camel: Camel-OAuth Authentication Bypass via Fail-Open Processors
CVE-2026-80344 8.2 HIGH Apache Camel: Camel-AS2 Server-Side Request Forgery and Credential Disclosure via Asynchro
CVE-2026-80343 8.2 HIGH Apache Camel: Camel-Netty-HTTP Security Constraint Bypass via Case-Sensitive Context-Path
CVE-2026-78164 8.2 HIGH Apache Camel: HTTP producers resolve property placeholders in message-supplied URI overrid
CVE-2026-88901 8.2 HIGH Apache Camel: Camel-Smooks XML External Entity Processing, external entities resolved by d
CVE-2026-85251 7.5 HIGH Apache Camel: Camel-HTTP Credential Disclosure to Cross-Host Redirect Targets
CVE-2026-85250 7.5 HIGH Apache Camel: Camel-XPath XML External Entity Processing and File Disclosure via the docum
CVE-2026-79984 7.4 HIGH Apache Camel: camel-mina-sftp resolved the remote path of a polled file from the name repo
CVE-2026-79985 7.4 HIGH Apache Camel: camel-smb resolved the remote path of a polled file from the name reported i
CVE-2026-79986 7.4 HIGH Apache Camel: camel-azure-files resolved the remote path of a polled file from the name re
CVE-2026-79983 7.4 HIGH Apache Camel: camel-ftp resolved the remote path of a polled file from the name reported i
CVE-2026-91858 6.5 MEDIUM Apache Camel: Camel-FOP Resolves External DTDs and Entities From Untrusted XSL-FO Input Wh
CVE-2026-84176 6.5 MEDIUM Apache Camel: Camel-Platform-HTTP-Vertx Cross-Origin Credential Exposure via Wildcard Orig
CVE-2026-85314 6.5 MEDIUM Apache Camel: Camel-Mail Header Injection via Unfiltered mail.smtp Headers in the MimeMult
CVE-2026-85249 6.5 MEDIUM Apache Camel: Camel-Tika Header Injection via Unfiltered Document Metadata
CVE-2026-85254 6.5 MEDIUM Apache Camel: Camel-Platform-HTTP Request-Header Echo Suppression Bypassed by Header-Name

Showing top 20 of 62 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Apache Camel
Same vendor: Apache Software Foundation
Same weakness: CWE-488

V. Comments for CVE-2026-85296

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