9.2

CVE-2026-49445: Cilium: Sensitive information disclosure and cluster disruption via local Envoy admin socket access

Analyzed
AliasesGHSA-3fcv-jvfp-m4q9BIT-cilium-2026-49445BIT-cilium-operator-2026-49445
Published 15-07-2026Last modified 16-07-2026

Vulnerability summary

CVE-2026-49445 is a critical (CVSS 9.2) vulnerability in cilium. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.2/10
010
Critical · 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 1 · Related 1
OPENSUSE-SU-2026:21483-1

Timeline

  1. 15-07-2026
    PublishedVulnerability first disclosed.
  2. 16-07-2026
    Last modifiedVulnerability information updated.

Description

Cilium is a networking, observability, and security solution. Prior to 1.17.14, 1.18.8, and 1.19.2, when Cilium L7 functionality is enabled, the embedded or standalone Envoy instance creates a world-accessible admin.sock on cluster nodes, allowing a local attacker to access Envoy admin endpoints, expose TLS secrets, disrupt cluster traffic, or terminate Envoy. This issue is fixed in versions 1.17.14, 1.18.8, and 1.19.2.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

5%

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

Chainguard12 products
  • cilium-1.16All versions (No fix recorded)
  • cilium-1.16-clustermesh-apiserverAll versions (No fix recorded)
  • cilium-1.16-hubble-relayAll versions (No fix recorded)
  • cilium-1.16-operator-awsAll versions (No fix recorded)
  • cilium-1.16-operator-genericAll versions (No fix recorded)
Cilium1 product
  • cilium< 1.17.14 | ≥ 1.18.0, < 1.18.8 | ≥ 1.19.0, < 1.19.2
Github.com/cilium1 product
  • cilium≥ 1.18.0, < 1.18.8 | < 1.17.14 | ≥ 1.19.0, < 1.19.2
Opensuse1 product
  • kubeshark-cli&distro=openSUSE Tumbleweed< 53.4.0-1.1

4 vendors · 15 products

References

10 links