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Apache Camel K CVE-2026-45760

| EUVDEUVD-2026-31268 HIGH
Externally Controlled Reference to a Resource in Another Sphere (CWE-610)
2026-05-21 apache GHSA-q8ch-jx67-q52x
8.1
CVSS 3.1 · Vendor: apache
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate to Kubernetes with Build-create rights
  2. Delivery
    Craft Build resource targeting operator namespace
  3. Exploit
    Operator generates Pod in privileged namespace
  4. Execution
    Attacker-controlled Pod runs under operator authority
  5. Impact
    Access cross-namespace secrets and resources

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V4 - API and Web Service External resource reference control
Exploitation Conditions

The attacker must be an authenticated Kubernetes user who already holds RBAC permission to create a Build resource in at least one namespace of the cluster (PR:L). The concrete prerequisite is a multi-tenant or shared Camel K deployment where the operator watches/serves namespaces the attacker does not fully control; the attack works by setting the user-controlled target namespace of the Build to the operator (or another victim) namespace. Limiting factors: it requires the affected versions (2.0.0-2.8.0, 2.9.0-2.9.1, or 2.10.0), a valid cluster identity with Build-create rights, and yields no benefit in a single-tenant cluster where the attacker already owns every namespace. No user interaction is required (UI:N).

Impact

The CVSS vector (AV:N/AC:L/PR:L/UI:N, C:H/I:H/A:N) describes a network-reachable, low-complexity attack requiring only low privileges - i.e., any user already granted rights to create Build resources in some namespace - with high confidentiality and integrity impact but no availability impact. SSVC aligns on severity (Technical Impact: total) but tempers urgency: Exploitation is 'none' (no observed activity) and Automatable is 'no', consistent with the very low EPSS (0.02%, 5th percentile) and the absence of KEV listing or known POC. The realistic picture is a genuinely serious tenant-isolation/privilege-escalation flaw that is high-impact but not mass-exploitable: it presupposes an attacker who already holds a foothold (valid namespace RBAC) in a multi-tenant cluster, so it is a real priority for shared/multi-tenant Camel K clusters and a lower priority for single-tenant deployments. Note the official vector uses S:U; because the impact reaches the operator namespace (a different security sphere), a scope-change interpretation (S:C) is defensible - verify against the vendor advisory.

Exploit ScenarioDerived

A developer with legitimate access to a single tenant namespace in a shared Kubernetes cluster crafts a Build custom resource that specifies the Camel K operator's namespace as the Pod target. The operator obligingly creates the attacker-controlled Pod in that privileged namespace, giving the attacker execution and resource access under the operator's elevated service account. No public exploit is identified at time of analysis, and the low attack complexity (AC:L) means no special timing or conditions are needed beyond the initial namespace foothold.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 23, 2026

Cross-namespace privilege escalation in Apache Camel K (2.0.0-2.8.0, 2.9.0-2.9.1, 2.10.0) lets an authenticated Kubernetes user who can create Build resources dictate the target namespace for the resulting Pod, including the privileged operator namespace. By steering Pod generation into the operator's namespace, a tenant confined to their own namespace can break out of RBAC boundaries and interact with higher-privilege resources. CVSS 8.1; no public exploit identified at time of analysis and EPSS is negligible (0.02%), but SSVC rates the technical impact as total.

RemediationAI

Vendor-released patch: upgrade to 2.10.1 (or the fixed backports 2.8.1 and 2.9.2) matching your minor line, per the Apache advisory at https://camel.apache.org/security/CVE-2026-45760.html and the oss-security disclosure at http://www.openwall.com/lists/oss-security/2026/05/21/8. If immediate upgrade is not possible, reduce exposure by tightening Kubernetes RBAC so that non-administrative tenants cannot create or modify Build custom resources (remove create/update verbs on builds.camel.apache.org from tenant roles) - the trade-off is that affected users lose the ability to trigger their own builds. Additionally, enforce namespace isolation with admission controls (e.g., an OPA/Gatekeeper or ValidatingAdmissionPolicy that rejects Build resources whose target namespace differs from the requester's own), accepting the operational cost of maintaining that policy. These controls limit the cross-namespace abuse until patching completes.

Affected VersionsENISA

Apache Camel K 2.9.0 <2.9.2
Apache Camel K 2.10.0 <2.10.1
Apache Camel K 2.0.0 <2.8.1

Affected Packages

go github.com/apache/camel-k no fix
go github.com/apache/camel-k/v2 fix: 2.8.1, 2.9.2, 2.10.1
euvd apache_camel_k fix: 2.8.1, 2.9.2, 2.10.1

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 3 packages in go, euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Apache Camel K is a Kubernetes-native integration platform (built on Apache Camel) that runs as an operator and uses Custom Resources such as Integration and Build to drive the build-and-deploy lifecycle. The Build custom resource normally results in the operator scheduling builder Pods. The root cause is CWE-610 (Externally Controlled Reference to a Resource in Another Sphere) combined with an authorization-bypass-through-user-controlled-key pattern: a field controllable by the requesting user (the target namespace for Pod creation) is trusted without validating that the user is authorized in that namespace. Because the operator holds elevated service-account permissions, letting a low-privilege user select the operator namespace as the destination effectively borrows the operator's authority. The single affected CPE is cpe:2.3:a:apache_software_foundation:apache_camel_k.

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Severity by source

Vendor (apache) PRIMARY 8.1 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
vuln.today AI 9.6 CRITICAL

Kubernetes-API reachable (AV:N) with only Build-create rights (PR:L), no UI; impact crosses into the operator's security sphere so S:C; high C/I via operator authority, no availability impact.

3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
SUSE HIGH

Primary rating from Vendor (apache).

CVSS VectorVendor: apache

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

4
CVSS changed
Jul 23, 2026 - 16:22 NVD
8.1 (None) 8.1 (HIGH)
Patch available
May 21, 2026 - 13:01 EUVD
CVE Published
May 21, 2026 - 11:43 cve.org
HIGH 8.1
CVE Published
May 21, 2026 - 11:43 nvd
UNKNOWN (no severity yet)

DescriptionCVE.org

(Externally Controlled Reference to a Resource in Another Sphere), (Authorization Bypass Through User-Controlled Key) vulnerability in Apache Camel K. Authorized users in a Kubernetes namespace can create a Build resource, controlling the Pod generation in a namespace of their choice, including the operator namespace.

This issue affects Apache Camel K: from 2.0.0 before 2.8.1, from 2.9.0 before 2.9.2, from 2.10.0 before 2.10.1.

Users are recommended to upgrade to version 2.10.1 (or 2.8.1 or 2.9.2), which fixes the issue.

Executive ViewAI

Why It Matters

Apache Camel K versions 2.0.0 through 2.10.0 contain a cross-namespace privilege escalation vulnerability that allows Kubernetes users confined to a single namespace to break out of RBAC boundaries and gain access to the operator namespace with administrative permissions. This affects organizations with multi-tenant Kubernetes deployments relying on namespace isolation for security, potentially enabling compromise of cluster-level infrastructure and other tenants' workloads.

Business Impact: High
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.0%
Top 95% exploitable
Prevalence
Low
niche Kubernetes-native integration operator, limited enterprise footprint
Threat Intel
1
1 source
Social Media
1
Sightings
Data Quality
6 sources
Confidence: High
EUVD NVD CVE.org EPSS Vulnrichment GHSA Vendor CIRCL VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Total

Priority Score

40
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +40
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Vendor StatusVendor

SUSE

Severity: Important
Product Status
SUSE Linux Enterprise Server 16.1 Affected
SUSE Linux Enterprise Server for SAP applications 16.1 Affected
SUSE Linux Enterprise Module for Package Hub 15 SP5 Affected
SUSE Linux Enterprise Module for Package Hub 15 SP6 Affected
openSUSE Leap 15.5 Affected

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