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Fencer Vulns
high 7.9

CVE-2024-37307 json

Cilium leaks sensitive information in cilium-bugtool

published 2024-06-13 2 y ago modified 2026-09-10 1 mo ago also BIT-cilium-2024-37307 , BIT-cilium-operator-2024-37307 , BIT-cilium-proxy-2024-37307 , BIT-hubble-2024-37307 , BIT-hubble-relay-2024-37307 , BIT-hubble-ui-2024-37307 , BIT-hubble-ui-backend-2024-37307 , EUVD-2024-2192 , GHSA-wh78-7948-358j , GO-2024-2922

cvss
7.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits
0
none known

Summary

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.13.0 and prior to versions 1.13.7, 1.14.12, and 1.15.6, the output of `cilium-bugtool` can contain sensitive data when the tool is run (with the `--envoy-dump` flag set) against Cilium deployments with the Envoy proxy enabled. Users of the TLS inspection, Ingress with TLS termination, Gateway API with TLS termination, and Kafka network policies with API key filtering features are affected. The sensitive data includes the CA certificate, certificate chain, and private key used by Cilium HTTP Network Policies, and when using Ingress/Gateway API and the API keys used in Kafka-related network policy. `cilium-bugtool` is a debugging tool that is typically invoked manually and does not run during the normal operation of a Cilium cluster. This issue has been patched in Cilium v1.15.6, v1.14.12, and v1.13.17. There is no workaround to this issue.

Patch / fix

  • go github.com/cilium/cilium 1.13.17, 1.14.12, 1.15.6
  • bitnami cilium 1.15.6
  • bitnami cilium-operator 1.15.6
  • bitnami cilium-proxy 1.13.17, 1.14.12, 1.15.6
  • bitnami hubble 1.13.17, 1.14.12, 1.15.6
  • bitnami hubble-relay 1.15.6
  • bitnami hubble-ui 1.13.17, 1.14.12, 1.15.6
  • bitnami hubble-ui-backend 1.13.17, 1.14.12, 1.15.6
  • cilium cilium 1.13.17, 1.14.12, 1.15.6

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.9 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
GitHub 3.1 7.9 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
NVD 3.1 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
OSV 3.1 7.9 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
go github.com/cilium/cilium
>=1.13.0, <1.13.17
>=1.14.0, <1.14.12
>=1.15.0, <1.15.6
1.13.17
1.14.12
1.15.6
bitnami cilium
>=1.15.4, <1.15.6
1.15.6
bitnami cilium-operator
>=1.15.4, <1.15.6
1.15.6
bitnami cilium-proxy
>=1.13.0, <1.13.17
>=1.14.0, <1.14.12
>=1.15.0, <1.15.6
1.13.17
1.14.12
1.15.6
bitnami hubble
>=1.13.0, <1.13.17
>=1.14.0, <1.14.12
>=1.15.0, <1.15.6
1.13.17
1.14.12
1.15.6
bitnami hubble-relay
>=1.13.0, <1.15.6
1.15.6
bitnami hubble-ui
>=1.13.0, <1.13.17
>=1.14.0, <1.14.12
>=1.15.0, <1.15.6
1.13.17
1.14.12
1.15.6
bitnami hubble-ui-backend
>=1.13.0, <1.13.17
>=1.14.0, <1.14.12
>=1.15.0, <1.15.6
1.13.17
1.14.12
1.15.6

Affected products

  • cilium cilium

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.