6.1

CVE-2024-28250: Cilium has possible unencrypted traffic between nodes when using WireGuard and L7 policies

Analyzed
AliasesCGA-25pf-wxp7-9rf7CGA-3p57-h2rp-9x5gCGA-5mgg-v3r7-qm3w
Published 18-03-2024Last modified 02-08-2024

Vulnerability summary

CVE-2024-28250 is a medium (CVSS 6.1) Missing Encryption of Sensitive Data vulnerability in cilium. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.2% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 4
CGA-3F7F-X9J2-FXCMCGA-3VFX-4363-M729CGA-9983-WHMM-Q4GVCGA-CRG3-392F-JPQH

Timeline

  1. 18-03-2024
    PublishedVulnerability first disclosed.
  2. 02-08-2024
    Last modifiedVulnerability information updated.

Description

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's Envoy proxy and pods on other nodes is sent unencrypted and Wireguard-eligible traffic that is sent between a node's DNS proxy and pods on other nodes is sent unencrypted. This issue has been resolved in Cilium 1.14.8 and 1.15.2 in in native routing mode (`routingMode=native`) and in Cilium 1.14.4 in tunneling mode (`routingMode=tunnel`). Not that in tunneling mode, `encryption.wireguard.encapsulate` must be set to `true`. There is no known workaround for this issue.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.17% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard3 products
  • hubble-ui< 0.13.3-r1 | < 0.13.0-r3
  • hubble-ui-backend< 0.13.3-r3
  • hubble-ui-backend-fips< 0.13.0-r3
Wolfi2 products
  • hubble-ui< 0.13.3-r1 | < 0.13.0-r3
  • hubble-ui-backend< 0.13.3-r3
Cilium1 product
  • cilium≥ 1.14.0, < 1.14.8 | ≥ 1.15.0, < 1.15.2
Github.com/cilium1 product
  • cilium≥ 1.14.0, < 1.14.8 | ≥ 1.15.0, < 1.15.2

4 vendors · 7 products

References

7 links