CVE-2026-41520Cillium exposes sensitive information included in the cilium-bugtool debug archive
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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 patched in versions 1.17.15, 1.18.9, and 1.19.3.
- CVSS
- 7.9 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
- Weakness (CWE)
- CWE-200, CWE-312
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- May 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
cilium cilium cilium:cilium (from the name) | before 1.17.15; from 1.18.0, < 1.18.9; from 1.19.0, < 1.19.3 | CNA record |
cilium cilium cilium:cilium | before 1.17.15; from 1.18.0 before 1.18.9; from 1.19.0 before 1.19.3 | NVD |
References
- https://github.com/cilium/cilium/security/advisories/GHSA-gj49-89wh-h4gjx-refsource-confirm, mitigation, vendor-advisory
- https://github.com/cilium/cilium/releases/tag/v1.17.15x-refsource-misc, product, release-notes
- https://github.com/cilium/cilium/releases/tag/v1.18.9x-refsource-misc, product, release-notes
- https://github.com/cilium/cilium/releases/tag/v1.19.3x-refsource-misc, product, release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.