CVE-2026-41520

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-41520
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-41520.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-41520
Aliases
Downstream
CGA (72)
MINI (18)
openSUSE (1)
Related
Published
2026-05-08T22:01:08Z
Modified
2026-10-22T10:31:57Z
Severity
  • 7.9 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
Summary
Cillium exposes sensitive information included in the cilium-bugtool debug archive
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-200",
        "CWE-312"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41520.json"
}
References

Affected packages

Git / github.com/cilium/cilium

Affected ranges

Type
GIT
Repo
https://github.com/cilium/cilium
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
4206eaa53006115b8a52cbab6394c78f06ebcf6a
Introduced
274205f001bb24b89d19f0fe7c3fb3aca20030c2
Fixed
c4898256570989a353f65304446e02da9aaa812f
Introduced
7c6667e1e707d7f39a4af3409c2a9ebea2917d32
Fixed
f5eb641b18502ebeca412b40c1bec7ff3d8bf9eb
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.17.15"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "1.18.0"
                },
                {
                    "fixed": "1.18.9"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpe": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "1.19.0"
                },
                {
                    "fixed": "1.19.3"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "original_tag": "v1.17.15",
            "range": [
                {
                    "fixed": "4206eaa53006115b8a52cbab6394c78f06ebcf6a"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "original_tag": "v1.18.9",
            "range": [
                {
                    "fixed": "c4898256570989a353f65304446e02da9aaa812f"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "original_tag": "v1.19.3",
            "range": [
                {
                    "fixed": "f5eb641b18502ebeca412b40c1bec7ff3d8bf9eb"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

1.*
1.10.0-rc0
1.11.0-rc0
1.11.0-rc1
1.11.0-rc2
1.12.0-rc0
1.12.0-rc1
1.12.0-rc2
1.13.0-rc0
1.13.0-rc1
1.13.0-rc2
1.13.0-rc3
1.14.0-pre.2
1.14.0-rc.0
1.14.0-snapshot.0
1.14.0-snapshot.1
1.14.0-snapshot.2
1.14.0-snapshot.3
1.14.0-snapshot.4
1.15.0-pre.0
1.15.0-pre.1
1.15.0-pre.2
1.15.0-pre.3
1.16.0-pre.0
1.16.0-pre.1
1.16.0-pre.2
1.16.0-pre.3
1.16.0-rc.0
1.17.0
1.17.0-pre.0
1.17.0-pre.1
1.17.0-pre.2
1.17.0-pre.3
1.17.0-rc.0
1.17.0-rc.1
1.17.0-rc.2
1.17.1
1.17.10
1.17.11
1.17.12
1.17.13
1.17.14
1.17.2
1.17.3
1.17.4
1.17.5
1.17.6
1.17.7
1.17.8
1.17.9
1.18.0
1.18.1
1.18.2
1.18.3
1.18.4
1.18.5
1.18.6
1.18.7
1.18.8
1.19.0
1.19.1
1.19.2
1.5.0-rc2
1.8.0-rc1
1.9.0-rc0
1.9.0-rc1
v0.*
v0.10.0
v0.13.1
v0.13.10
v0.13.14
v0.13.15
v0.13.16
v0.13.17
v0.13.18
v0.13.19
v0.13.2
v0.13.20
v0.13.21
v0.13.22
v0.13.25
v0.13.4
v0.13.5
v0.13.6
v0.13.8
v0.8.0
v0.8.2
v0.9.0-rc1
v1.*
v1.0.0-rc1
v1.0.0-rc4
v1.0.0-rc5
v1.0.0-rc6
v1.0.0-rc7
v1.0.0-rc8
v1.0.0-rc9
v1.10.0-rc0
v1.11.0-rc0
v1.11.0-rc1
v1.11.0-rc2
v1.12.0-rc0
v1.12.0-rc1
v1.12.0-rc2
v1.13.0-rc0
v1.13.0-rc1
v1.13.0-rc2
v1.13.0-rc3
v1.14.0-pre.2
v1.14.0-rc.0
v1.14.0-snapshot.0
v1.14.0-snapshot.1
v1.14.0-snapshot.2
v1.14.0-snapshot.3
v1.14.0-snapshot.4
v1.14.0-snapshot.5
v1.15.0-pre.0
v1.15.0-pre.1
v1.15.0-pre.2
v1.15.0-pre.3
v1.16.0-pre.0
v1.16.0-pre.1
v1.16.0-pre.2
v1.16.0-pre.3
v1.16.0-rc.0
v1.17.0
v1.17.0-pre.0
v1.17.0-pre.1
v1.17.0-pre.2
v1.17.0-pre.3
v1.17.0-rc.0
v1.17.0-rc.1
v1.17.0-rc.2
v1.17.1
v1.17.10
v1.17.11
v1.17.12
v1.17.13
v1.17.14
v1.17.2
v1.17.3
v1.17.4
v1.17.5
v1.17.6
v1.17.7
v1.17.8
v1.17.9
v1.18.0
v1.18.1
v1.18.2
v1.18.3
v1.18.4
v1.18.5
v1.18.6
v1.18.7
v1.18.8
v1.19.0
v1.19.1
v1.19.2
v1.3.0-rc1
v1.5.0-rc1
v1.5.0-rc2
v1.6.0-rc1
v1.6.0-rc2
v1.6.0-rc3
v1.7.0-rc1
v1.7.0-rc2
v1.8.0-rc1
v1.9.0-rc0
v1.9.0-rc1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-41520.json"