Cilium
CVE-2024-42486
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK
2 techniques across 2 tactics: Collection, Discovery The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.2 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. |
| Exploit ScenarioDerived | A remote attacker could access sensitive data that should not be disclosed by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Minimize information in error messages, implement proper access controls, encrypt sensitive data at rest and in transit.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in go
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Exposure of Sensitive Information (CWE-200), which allows attackers to access sensitive data that should not be disclosed. Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In versions on the 1.15.x branch prior to 1.15.8 and the 1.16.x branch prior to 1.16.1, ReferenceGrant changes are not correctly propagated in Cilium's GatewayAPI controller, which could lead to Gateway resources being able to access secrets for longer than intended, or to Routes having the ability to forward traffic to backends in other namespaces for longer than intended. This issue has been patched in Cilium v1.15.8 and v1.16.1. As a workaround, any modification of a related Gateway/HTTPRoute/GRPCRoute/TCPRoute CRD (for example, adding any label to any of these resources) will trigger a reconciliation of ReferenceGrants on an affected cluster. Affected products include: Cilium. Version information: prior to 1.15.8.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In versions on the 1.15.x branch prior to 1.15.8 and the 1.16.x branch prior to 1.16.1, ReferenceGrant changes are not correctly propagated in Cilium's GatewayAPI controller, which could lead to Gateway resources being able to access secrets for longer than intended, or to Routes having the ability to forward traffic to backends in other namespaces for longer than intended. This issue has been patched in Cilium v1.15.8 and v1.16.1. As a workaround, any modification of a related Gateway/HTTPRoute/GRPCRoute/TCPRoute CRD (for example, adding any label to any of these resources) will trigger a reconciliation of ReferenceGrants on an affected cluster.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Affected Products (CPE)NVD
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Rated critical severity (CVSS
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Rated critical severity (CVSS
Cross-namespace authorization bypass in Cilium's Gateway API implementation (versions prior to 1.17.17, 1.18.11, and 1.1
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Rated high severity (CVSS 8.7
Cilium is open source software for providing and securing network connectivity and loadbalancing between application wor
Cilium is open source software for providing and securing network connectivity and loadbalancing between application wor
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Rated high severity (CVSS 8.1
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Rated low severity (CVSS 3.5)
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Rated high severity (CVSS 7.3
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Rated high severity (CVSS 7.2
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Rated medium severity (CVSS 6
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Rated medium severity (CVSS 6
NVD
CVE.org
EPSS
GitHub
Exploit-DB