CVE-2025-62820

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Source
https://cve.org/CVERecord?id=CVE-2025-62820
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-62820.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-62820
Aliases
Downstream
CGA (24)
CLEANSTART (19)
MINI (1)
openSUSE (2)
Related
openSUSE (2)
Published
2025-10-23T00:00:00Z
Modified
2026-10-16T02:55:47Z
Severity
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L CVSS Calculator
Summary
[none]
Details

Slack Nebula before 1.9.7 mishandles CIDR in some configurations and thus accepts arbitrary source IP addresses within the Nebula network.

Database specific 
{
    "cna_assigner":  "mitre",
    "cwe_ids":  [
        "CWE-420"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/62xxx/CVE-2025-62820.json"
}
References

Affected packages

Git / github.com/slackhq/nebula

Affected ranges

Type
GIT
Repo
https://github.com/slackhq/nebula
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
7c3f5339508c7dbc74eea7f925d31b28bafa1b45
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "1.9.7"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "1.9.7"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Affected versions

v1.*
v1.0.0
v1.1.0
v1.2.0
v1.3.0
v1.4.0
v1.5.0
v1.5.2
v1.6.0
v1.6.1
v1.7.0
v1.7.1
v1.7.2
v1.8.0
v1.8.1
v1.8.2
v1.9.0
v1.9.1
v1.9.2
v1.9.3
v1.9.4
v1.9.5
v1.9.6

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-62820.json"