TI-2024-18808 Aliases CVE-2024-28249 GHSA-j89h-qrvr-xc36

Cilium has possible unencrypted traffic between nodes when using IPsec and L7 policies

LOW 27CWE-311Published 2024-03-18 · Updated 2024-08-02

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-311.

Summary

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.13.13, 1.14.8, and 1.15.2, in Cilium clusters with IPsec enabled and traffic matching Layer 7 policies, IPsec-eligible traffic between a node's Envoy proxy and pods on other nodes is sent unencrypted and IPsec-eligible traffic between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.15.2, 1.14.8, and 1.13.13. There is no known workaround for this issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00271 19th percentileScored 2026-11-07

Fix Fixed cilium (cilium): 1.13.13, 1.14.8, 1.15.2github.com/cilium/cilium (Go): 1.13.13, 1.14.8, 1.15.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
cilium	cilium	before 1.13.13; 1.14.0 to before 1.14.8; 1.15.0 to before 1.15.2	1.13.13, 1.14.8, 1.15.2	Patch available	CNA
—	github.com/cilium/cilium (Go)	before 1.13.13	1.13.13	Patch available	GHSA-j89h-qrvr-xc36
—	github.com/cilium/cilium (Go)	1.14.0 to before 1.14.8	1.14.8	Patch available	GHSA-j89h-qrvr-xc36
—	github.com/cilium/cilium (Go)	1.15.0 to before 1.15.2	1.15.2	Patch available	GHSA-j89h-qrvr-xc36

cilium Vendorcilium Affected before 1.13.13; 1.14.0 to before 1.14.8; 1.15.0 to before 1.15.2 Fixed in 1.13.13, 1.14.8, 1.15.2 Patch available CNA
github.com/cilium/cilium (Go) Vendor— Affected before 1.13.13 Fixed in 1.13.13 Patch available GHSA-j89h-qrvr-xc36
github.com/cilium/cilium (Go) Vendor— Affected 1.14.0 to before 1.14.8 Fixed in 1.14.8 Patch available GHSA-j89h-qrvr-xc36
github.com/cilium/cilium (Go) Vendor— Affected 1.15.0 to before 1.15.2 Fixed in 1.15.2 Patch available GHSA-j89h-qrvr-xc36

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cilium:cilium::::::::	before 1.13.13; 1.14.0 to before 1.14.8; 1.15.0 to before 1.15.2	Vulnerable	cilium

cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:* Versions before 1.13.13; 1.14.0 to before 1.14.8; 1.15.0 to before 1.15.2 Vulnerable ·cilium

Remediation

Fix · CNA cilium (cilium) Fixed in 1.13.13, 1.14.8, 1.15.2
Fix · GHSA-j89h-qrvr-xc36 github.com/cilium/cilium (Go) Fixed in 1.13.13 Advisory →
Fix · GHSA-j89h-qrvr-xc36 github.com/cilium/cilium (Go) Fixed in 1.14.8 Advisory →
Fix · GHSA-j89h-qrvr-xc36 github.com/cilium/cilium (Go) Fixed in 1.15.2 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2024-28249
2026-10-03 Alias added: GHSA-j89h-qrvr-xc36

References

Advisory 2

Other 4

TI-2024-32092 CIDR deny policies may not take effect when a more narrow CIDR allow is present CVSS 3.1HIGH 8.7
TI-2023-12305 Cilium eBPF filters may be temporarily removed during agent restart CVSS 3.1CRITICAL 9.8
TI-2023-20486 Cilium NetworkPolicy bypass via pod labels CVSS 3.1CRITICAL 9.0
TI-2022-11721 Incorrect Default Permissions in Cilium CVSS 3.1HIGH 8.8
TI-2026-36600 Cilium: Sensitive information disclosure and cluster disruption via local Envoy admin socket access CVSS 3.1CRITICAL 9.2
TI-2026-40915 Cilium: Namespaced HTTPRoutes can redirect traffic to other namespaces CVSS 3.1HIGH 8.9

See all 34 →

Sources

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