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CVE-2026-53935

MEDIUM
6.9
CVSS 3.1
Description
Cilium is a networking, observability, and security solution. Prior to 1.17.16, from 1.18.2 to 1.18.9, and from 1.19.0 to 1.19.3, users with the ability to create CiliumLocalRedirectPolicies can specify arbitrary ClusterIPs via addressMatcher, enabling hijacking traffic to Services in any namespace and bypassing namespace scoping enforced by serviceMatcher; deleting such a policy can also corrupt Cilium internal service state and stop service translation for the affected Service. This issue is fixed in versions 1.17.16, 1.18.10, and 1.19.4.

Metadata

CVE ID
CVE-2026-53935
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-11 15:46 UTC
Published
2026-07-07 20:44 UTC
Last updated
2026-07-07 20:44 UTC
Primary CWE
CWE-863
CWE-863: Incorrect Authorization
Vendor / Product
cilium / cilium
Sources
cve.org  ·  NVD

Severity & Metrics

6.9 MEDIUM CVSS 3.1
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:H
Affected products (1)
VendorProductPlatformVersions
cilium cilium — < 1.17.16, >= 1.18.2, < 1.18.10, >= 1.19.0, < 1.19.4
Weakness (CWE)
CWESourceDescription
CWE-863 cna CWE-863: Incorrect Authorization
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.9 MEDIUM 3.1 cna CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:H
References (7)
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