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CVE-2026-49445
9.2 CRITICAL
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Local (L)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Changed (C)
- Confidentiality (C): High (H)
- Integrity (I): Low (L)
- Availability (A): High (H)
- Modified Attack Vector (MAV): Local (L)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Changed (C)
- Modified Integrity (MI): Low (L)
- Modified Availability (MA): High (H)
Activity log
- Created suggestion
Cilium: Sensitive information disclosure and cluster disruption via local Envoy admin socket access
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.
References
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https://github.com/cilium/cilium/security/advisories/GHSA-3fcv-jvfp-m4q9 x_refsource_CONFIRM
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https://github.com/cilium/cilium/pull/44512 x_refsource_MISC
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https://github.com/cilium/cilium/releases/tag/v1.17.14 x_refsource_MISC
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https://github.com/cilium/cilium/releases/tag/v1.18.8 x_refsource_MISC
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https://github.com/cilium/cilium/releases/tag/v1.19.2 x_refsource_MISC
Affected products
cilium
- ==>= 1.18.0, < 1.18.8
- ==< 1.17.14
- ==>= 1.19.0, < 1.19.2
Package maintainers
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@ryan4yin Ryan Yin <xiaoyin_c@qq.com>
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@akshatagarwl Akshat Agarwal <humancalico@disroot.org>
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@qjoly Quentin JOLY <github@une-pause-cafe.fr>