CVE-2026-55513

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Source
https://cve.org/CVERecord?id=CVE-2026-55513
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-55513.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-55513
Aliases
Downstream
Related
Published
2026-09-04T19:43:18Z
Modified
2026-10-16T03:00:02Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
nebula-mesh: Web UI host creation ignores configured enrollment token TTL and mints 24-hour bearer enrollment tokens
Details

nebula-mesh is a self-hosted control plane for Slack Nebula mesh VPN. From version 0.3.0 to before version 0.5.0, the nebula-mgmt Web UI host-creation path ignores both the server-wide enrollment_token_ttl security setting and per-network network_config.enrollment_token_ttl overrides. API host creation and token-regeneration paths use the configured TTL resolver, but POST /ui/hosts hardcodes now.Add(24 * time.Hour) for newly minted agent enrollment tokens. In deployments that intentionally reduce enrollment-token lifetime, any authenticated operator who can create a host through the Web UI can still mint a bearer enrollment token valid for about 24 hours. This issue has been patched in version 0.5.0.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-613"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55513.json"
}
References

Affected packages

Git / github.com/forgekeep/nebula-mesh

Affected ranges

Type
GIT
Repo
https://github.com/forgekeep/nebula-mesh
Events
Introduced
071db75dc49b1f677a307af28d91d70d20c89163
Fixed
7186b86821fc210f191eb44bcb52ef108149f02c
Fixed
514006029e09f1991122b86a80e7b25970bcfa98
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0.3.0"
                },
                {
                    "fixed":  "0.5.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "514006029e09f1991122b86a80e7b25970bcfa98"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v0.5.0",
            "range":  [
                {
                    "fixed":  "7186b86821fc210f191eb44bcb52ef108149f02c"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

v0.*
v0.3.0
v0.3.1
v0.3.2
v0.3.3
v0.3.4
v0.3.5
v0.3.6
v0.3.7
v0.3.8
v0.4.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-55513.json"