CVE-2026-48206: Apache Camel JIRA Header Injection – Unauthorized Operations Risk

Technical summary

The vulnerability is a combination of improper input validation (CWE-20) and authorization bypass through user-controlled keys (CWE-639). Apache Camel's JIRA producer reads operation parameters from Exchange message headers using non-namespaced constants (ISSUE_KEY, ISSUE_PROJECT_KEY, ISSUE_TRANSITION_ID, LINK_TYPE, etc.). The HttpHeaderFilterStrategy filters only headers in the Camel namespace (prefixed with 'Camel' or 'camel') at HTTP boundaries, allowing unprefixed headers to pass unchanged from inbound HTTP requests into the Exchange object. In routes that consume from HTTP endpoints and produce to jira: endpoints, this permits header injection. An attacker supplies crafted HTTP headers that are treated as JIRA operation directives, executed using the endpoint's configured service-account credentials. The scope is the unauthenticated or minimally-authenticated HTTP consumer; no attacker credentials are needed if the consumer lacks authentication.

Business impact

Organizations using Camel to bridge external HTTP traffic to JIRA face potential operational disruption and data integrity compromise. Attackers can delete or modify issues, reassign work, alter project structures, or inject false time-tracking records—all without authentication if the HTTP consumer is publicly accessible or within network reach. Service-level impacts include inaccurate project tracking, broken workflow automation, unauthorized state changes to production-related issues, and loss of audit trail integrity. The threat is highest for deployments that expose Camel HTTP endpoints without strong authentication and use JIRA as a critical operational system.

Affected systems

Apache Camel versions 4.0.0–4.14.7, 4.15.0–4.18.2, and 4.19.0–4.20.x are vulnerable. The affected component is camel-jira (the JIRA producer). Vulnerability exposure depends on route architecture: only routes that combine an HTTP consumer (such as platform-http, jetty, or servlet) with a jira: producer are at risk. Deployments using Camel for other integration patterns are unaffected. Fixed versions are 4.14.8, 4.18.3, and 4.21.0 onwards.

Exploitability

Exploitability is straightforward for an attacker with network access to the HTTP consumer endpoint. No authentication bypass is required if the consumer lacks auth controls. The attacker simply crafts HTTP requests with headers like 'IssueKey: PROJ-999' or 'ProjectKey: UNINTENDED-PROJECT' and sends them to the endpoint. The attack is repeatable and requires only knowledge of valid JIRA issue keys or project keys, which are often discoverable or guessable. There is no user interaction required, and the CVSS vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) reflects network accessibility and low complexity, though note the vector shows 'C:L' (low confidentiality impact) and 'I:N' (no integrity impact) which may underrepresent the actual integrity risk of unauthorized JIRA state modification; the vulnerability's true impact extends beyond the scored vector to unauthorized operations (integrity concern).

Remediation

Upgrade to a patched version: 4.14.8 (LTS stream), 4.18.3, or 4.21.0 and later. After upgrading, update routes to use the new Camel-namespaced header constants (e.g., CamelJiraIssueKey instead of IssueKey). For organizations unable to patch immediately, implement header filtering at the start of vulnerable routes to strip camel-jira control headers (IssueKey, ProjectKey, IssueTransitionId, LinkType, WorkLogMinutes, etc.) from untrusted ingress, and supply JIRA operation parameters from trusted configuration or internal sources instead of HTTP request headers. Additionally, enforce authentication on HTTP consumer endpoints and use network segmentation to limit JIRA producer endpoint accessibility.

Patch guidance

1. Identify Camel versions in use (check pom.xml, build.gradle, or dependency lists). 2. If running 4.0.0–4.14.7, upgrade to 4.14.8. If on 4.15.0–4.18.2, upgrade to 4.18.3. If on 4.19.0–4.20.x, upgrade to 4.21.0. 3. Review integration routes that consume from HTTP and produce to jira:. 4. Update route definitions to use CamelJira* header constants (CamelJiraIssueKey, CamelJiraProjectKey, etc.) instead of plain names. 5. Test routes with sample JIRA operations to confirm expected behavior. 6. Deploy in a staged environment before production rollout. For interim mitigation before patching, add a header-filtering step early in affected routes using Camel's setHeader() DSL or Java API to drop IssueKey, ProjectKey, IssueTransitionId, and related headers, replacing them with hard-coded or configuration-driven values.

Detection guidance

Monitor HTTP access logs for requests containing headers like 'IssueKey', 'ProjectKey', 'IssueTransitionId', 'LinkType', 'WorkLogMinutes', or other JIRA-related header names. Correlate these with unexpected JIRA operations (issue deletions, state transitions, field modifications, watcher changes, time-log entries). Review Camel route definitions and their Camel version numbers to identify susceptible patterns (HTTP consumer → jira: producer). Enable audit logging in JIRA to track operations performed by the service account and flag those that deviate from normal patterns. Look for HTTP requests to known Camel HTTP consumer endpoints that include these headers and originate from untrusted sources.

Why prioritize this

Although the CVSS score is 5.3 (medium), the vulnerability merits higher operational priority because it enables unauthorized modification of business-critical JIRA state using the service account's full permissions. In environments where JIRA drives release cycles, incident management, or compliance tracking, unauthorized state changes pose significant integrity and compliance risks. The attack is network-accessible, requires no authentication, and can be automated. Organizations with exposed Camel HTTP consumers bridging to JIRA should prioritize patching or interim mitigation.

Risk score, explained

The CVSS:3.1 score of 5.3 (MEDIUM) reflects network attack vector and low complexity, but with no privilege requirement and no user interaction. The vector shows 'C:L/I:N/A:N', indicating the score authors assessed confidentiality risk (low, from information disclosure) while marking integrity and availability as unaffected. However, the vulnerability's actual impact includes integrity violations (unauthorized JIRA operations), which the vector may underrepresent. The score appropriately captures the low barrier to exploitation, but operational risk in JIRA-dependent environments warrants elevated prioritization relative to the base score.

Frequently asked questions