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CVE-2026-85301— Apache Camel: Camel-Keycloak Issuer Validation Bypass When the Introspection Response Omits the iss Claim

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 Keycloak 组件存在身份验证不当漏洞。 受影响版本：Apache Camel 4.15.0 至 4.18.5（不含 4.18.5），以及 4.19.0 至 4.22.1（不含 4.22.1）。 问题详情：安全处理器仅在内省（introspection）响应中实际包含 （签发者）声明时，才会验证被内省令牌的签发者。若该声明缺失，系统会跳过验证而非将其视为验证失败。因此，只要内省端点在响应中未指定签发者，即使该令牌并非由配置的签发者签发，也可能被接受。触发此漏洞需要满足两个条件：内省端点

CVSS 4.8 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-85301

Vulnerability Information
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Vulnerability Title
Apache Camel: Camel-Keycloak Issuer Validation Bypass When the Introspection Response Omits the iss Claim
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Authentication vulnerability in Apache Camel Keycloak component. This issue affects Apache Camel: from 4.15.0 before 4.18.5, from 4.19.0 before 4.22.1. The security processor validated the issuer of an introspected token only when the introspection response actually carried an iss claim. When the claim was absent the check was skipped rather than treated as a failure, so a token that the configured issuer did not mint could be accepted provided the introspection endpoint answered without naming an issuer. Reaching this requires an introspection endpoint that omits iss and accepts tokens from more than one issuer, which is not the default Keycloak arrangement, hence the low severity; where that arrangement exists the consequence is that the deployment authenticates a caller it should have rejected. 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. An absent iss claim is now treated as a validation failure rather than as a reason to skip the check. For deployments that cannot upgrade immediately, ensure the introspection endpoint returns the iss claim, and that it serves exactly one issuer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Camel 4.15.0 ~ 4.18.5 -

II. Public POCs for CVE-2026-85301

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III. Intelligence Information for CVE-2026-85301

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Patches & Fixes for CVE-2026-85301 (3)

Vendor Advisories for CVE-2026-85301 (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 → →

IV. Related Vulnerabilities

Same product: Apache Camel
Same vendor: Apache Software Foundation
Same weakness: CWE-287

V. Comments for CVE-2026-85301

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