CVE-2026-58207

Source
https://cve.org/CVERecord?id=CVE-2026-58207
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58207.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-58207
Aliases
  • GHSA-q59r-vq66-pxc2
Downstream
Published
2026-07-08T20:15:31.082Z
Modified
2026-07-15T01:49:20.678663026Z
Severity
  • 7.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
Summary
NATS Server: Remote crash via integer overflow in Connz pagination
Details

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, a client able to send account-scoped connection monitoring requests could crash the server by supplying Connz pagination Offset and Limit values that overflowed internal arithmetic before the response window was safely bounded. This issue is fixed in versions 2.14.3 and 2.12.12.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58207.json",
    "cwe_ids": [
        "CWE-190"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/nats-io/nats-server

Affected ranges

Type
GIT
Repo
https://github.com/nats-io/nats-server
Events
Database specific
{
    "cpe": "cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "2.12.0"
        },
        {
            "fixed": "2.12.12"
        },
        {
            "introduced": "2.14.0"
        },
        {
            "fixed": "2.14.3"
        }
    ]
}

Affected versions

v2.*
v2.12.0
v2.12.1
v2.12.1-RC.1
v2.12.1-RC.2
v2.12.1-RC.3
v2.12.1-RC.4
v2.12.1-RC.5
v2.12.10
v2.12.10-RC.1
v2.12.11
v2.12.2
v2.12.2-RC.1
v2.12.2-RC.2
v2.12.2-RC.3
v2.12.2-RC.4
v2.12.3
v2.12.3-RC.1
v2.12.3-RC.2
v2.12.3-RC.3
v2.12.3-RC.4
v2.12.3-RC.5
v2.12.4
v2.12.4-RC.1
v2.12.4-RC.2
v2.12.4-RC.3
v2.12.4-RC.4
v2.12.4-RC.5
v2.12.4-RC.6
v2.12.5
v2.12.5-RC.1
v2.12.5-RC.2
v2.12.6
v2.12.7
v2.12.8
v2.12.9
v2.12.9-RC.1
v2.12.9-RC.2
v2.14.0
v2.14.1
v2.14.1-RC.1
v2.14.1-RC.2
v2.14.2
v2.14.2-RC.1

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58207.json"