CVE-2026-85312
Description
A flaw was found in Apache Camel. The saga processing component fails to filter the Long-Running-Action header on incoming messages, which is used to determine which distributed transaction a request belongs to. A remote attacker can exploit this vulnerability by submitting a message with a crafted header, allowing them to attach requests to another user's ongoing transaction or trigger unauthorized compensation actions in deployments using a Long Running Action (LRA) coordinator.
Statement
This vulnerability is rated as having Moderate impact by Red Hat because exploitation requires specific route architectural prerequisites and knowledge of active transaction identifiers, limiting the general blast radius. In typical Red Hat Enterprise Linux and Red Hat build of Apache Camel deployments, applications are only exposed if integration routes actively employ the Saga Enterprise Integration Pattern (EIP) orchestrated via an external Long-Running-Action (LRA) coordinator. Furthermore, attackers cannot trigger arbitrary code execution or full denial of service, but are restricted to unauthorized transaction association or unintended compensation triggers when untrusted external inputs are accepted without header sanitization.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4.8 | N/A | 4.8 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | High | N/A | High |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | Low | N/A | Low |
| Integrity Impact | Low | N/A | Low |
| Availability Impact | None | N/A | None |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
cve.org: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Understanding the Weakness (CWE)
Access Control
Technical Impact: Bypass Protection Mechanism
Access control checks for specific user data or functionality can be bypassed.
Access Control
Technical Impact: Gain Privileges or Assume Identity
Horizontal escalation of privilege is possible (one user can view/modify information of another user).
Access Control
Technical Impact: Gain Privileges or Assume Identity
Vertical escalation of privilege is possible if the user-controlled key is actually a flag that indicates administrator status, allowing the attacker to gain administrative access.
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