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CVE-2024-42486

21
FAUCET Score

CVE-2024-42486 impacts Cilium versions 1.15.x prior to 1.15.8 and 1.16.x prior to 1.16.1. This vulnerability stems from improper propagation of ReferenceGrant changes within Cilium's GatewayAPI controller, potentially allowing Gateway resources to retain unauthorized access to secrets or Routes to forward traffic to backends in other namespaces for extended periods. The vulnerability is rated HIGH with a CVSS score of 7.2, indicating a network-exploitable issue with low attack complexity that could lead to limited confidentiality and integrity impacts. The EPSS score is low, suggesting a minimal probability of exploitation in the wild. Currently, there is no evidence of active exploitation, nor are there any public exploit codes available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are also minimal.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.15.0, <= 1.15.8CPE matchmatch criteria
cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*
1.16.0CPE matchmatch criteria
cpe:2.3:a:cilium:cilium:1.16.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.57%
Probability of exploitation in next 30 days
EPSS Percentile
44.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0057 is in the 21st percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (11)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/cilium/ciliumFixed in: 1.16.1
gopatch availablevia ghsa
Product: github.com/cilium/ciliumFixed in: 1.15.8
redhatno patchvia redhat_api
Product: OpenShift Developer Tools and ServicesFixed in: ocp-tools-4/jenkins-agent-base-rhel8
redhatno patchvia redhat_api
Product: OpenShift Developer Tools and ServicesFixed in: ocp-tools-4/jenkins-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenShift Data Science (RHODS)Fixed in: rhods/odh-ml-pipelines-api-server-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenShift Data Science (RHODS)Fixed in: rhods/odh-ml-pipelines-artifact-manager-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenShift Data Science (RHODS)Fixed in: rhods/odh-ml-pipelines-cache-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenShift Data Science (RHODS)Fixed in: rhods/odh-ml-pipelines-persistenceagent-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenShift Data Science (RHODS)Fixed in: rhods/odh-ml-pipelines-scheduledworkflow-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenStack Platform 16.2Fixed in: osp-director-provisioner-container

Vendor Advisories (2)

goGHSA-vwf8-q6fw-4wcmmedium

Cilium leaks information via incorrect ReferenceGrant update logic in Gateway API

Aug 16, 2024
redhatCVE-2024-42486Moderate

cilium/ebpf: Gateway resources continue to establish sessions using revoked ReferenceGrants

Aug 16, 2024

References

github.com / cilium/cilium/commit/ed3dfa0aab8b80f7e841a6d49d2a990ac2dca053
Patch
github.com / cilium/cilium/pull/34032
Patch
github.com / cilium/cilium/security/advisories/GHSA-vwf8-q6fw-4wcm
PatchThird Party Advisory