PT-2026-45915

Name of the Vulnerable Software and Affected Versions cilium ebpf versions prior to 0.21.0 Description An integer overflow occurs in the loadRawSpec function within the btf/btf.go file of the LoadCollectionSpec/LoadCollectionSpecFromReader component. This issue is triggered by the manipulation of...

Linux Distros Unpatched Vulnerability : CVE-2026-45886

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Fix bpfxdpstorebytes proto for read-only arg While making some maps in Cilium read-only from the BPF side, we noticed that the bpfxdpstorebytes proto is...

CVE-2026-45886 bpf: Fix bpf_xdp_store_bytes proto for read-only arg

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpfxdpstorebytes proto for read-only arg While making some maps in Cilium read-only from the BPF side, we noticed that the bpfxdpstorebytes proto is incorrect. In particular, the verifier was throwing the following error...

CVE-2026-45886 bpf: Fix bpf_xdp_store_bytes proto for read-only arg

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpfxdpstorebytes proto for read-only arg While making some maps in Cilium read-only from the BPF side, we noticed that the bpfxdpstorebytes proto is incorrect. In particular, the verifier was throwing the following error...

CLEANSTART-2026-GB36430 Security fixes for CVE-2025-61726, CVE-2025-61728, CVE-2025-61730, CVE-2025-68119, CVE-2026-25679, CVE-2026-27139, CVE-2026-27142, CVE-2026-27143, CVE-2026-27144, CVE-2026-29181, CVE-2026-32280, CVE-2026-32281, CVE-2026-32282, CVE-2026-32283, CVE-2026-32289, CVE-2026-33811, CVE-2026-33814, CVE-2026-39820, CVE-2026-39823, CVE-2026-39825, CVE-2026-39826, CVE-2026-39836, CVE-2026-42499, ghsa-mh2q-q3fh-2475 applied in versions: 1.18.5-r0, 1.19.3-r0

Multiple security vulnerabilities affect the cilium package. These issues are resolved in later releases. See references for individual vulnerability details...

CLEANSTART-2026-BR79647 Security fixes for CVE-2025-61726, CVE-2025-61728, CVE-2025-61730, CVE-2025-68119, CVE-2026-25679, CVE-2026-27139, CVE-2026-27142, CVE-2026-27143, CVE-2026-27144, CVE-2026-29181, CVE-2026-32280, CVE-2026-32281, CVE-2026-32282, CVE-2026-32283, CVE-2026-32289, CVE-2026-33811, CVE-2026-33814, CVE-2026-39820, CVE-2026-39823, CVE-2026-39825, CVE-2026-39826, CVE-2026-39836, CVE-2026-42499, ghsa-mh2q-q3fh-2475 applied in versions: 1.18.5-r0, 1.18.9-r0

Multiple security vulnerabilities affect the cilium package. These issues are resolved in later releases. See references for individual vulnerability details...

CLEANSTART-2026-QR52625 Security fixes for CVE-2025-61726, CVE-2025-61728, CVE-2025-61730, CVE-2025-68119, CVE-2026-25679, CVE-2026-27139, CVE-2026-27142, CVE-2026-27143, CVE-2026-27144, CVE-2026-29181, CVE-2026-32280, CVE-2026-32281, CVE-2026-32282, CVE-2026-32283, CVE-2026-32289, CVE-2026-33811, CVE-2026-33814, CVE-2026-39820, CVE-2026-39823, CVE-2026-39825, CVE-2026-39826, CVE-2026-39836, CVE-2026-42499, ghsa-mh2q-q3fh-2475 applied in versions: 1.17.15-r0, 1.18.5-r0

Multiple security vulnerabilities affect the cilium package. These issues are resolved in later releases. See references for individual vulnerability details...

CVE-2026-41520

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been...

BIT-HUBBLE-RELAY-2026-41520 Cillium exposes sensitive information included in the cilium-bugtool debug archive

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been...

BIT-CILIUM-OPERATOR-2026-41520 Cillium exposes sensitive information included in the cilium-bugtool debug archive

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been...

BIT-CILIUM-2026-41520 Cillium exposes sensitive information included in the cilium-bugtool debug archive

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been...

PT-2026-40274

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been...

PT-2026-40276

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been...

PT-2026-40275

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been...

CVE-2026-41520

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been...

CVE-2026-41520 Cillium exposes sensitive information included in the cilium-bugtool debug archive

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been...

CVE-2026-41520

CVE-2026-41520 affects Cilium’s bugtool output. Prior to versions 1.17.15, 1.18.9, and 1.19.3, running cilium-bugtool against deployments with WireGuard encryption can reveal sensitive data in the bug archive. The issue is addressed in the patched releases: 1.17.15, 1.18.9, and 1.19.3. The CVSS-d...

EUVD-2026-28845

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been...

CVE-2026-41520

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been...

CVE-2026-41520 Cillium exposes sensitive information included in the cilium-bugtool debug archive

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been...