CVE-2026-88252

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Source

https://cve.org/CVERecord?id=CVE-2026-88252

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-88252.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-88252

Downstream

Published

2026-10-06T17:50:41Z

Modified

2026-10-24T10:51:18Z

Severity

4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

Sssd: sssd: denial of service via responder connection retry loop during file descriptor exhaustion

Details

A flaw was found in sssd. A local user can cause a Denial of Service (DoS) by exhausting the responder service's available file descriptors (system handles used for open connections). By opening and maintaining many concurrent connections to a responder socket while continuing to queue new connection attempts, an attacker can trigger an unthrottled retry loop. This condition leads to high CPU utilization and stalls the service, preventing legitimate identity and authentication requests from being processed.

Database specific

{
    "cna_assigner":  "redhat",
    "cwe_ids":  [
        "CWE-835"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/88xxx/CVE-2026-88252.json"
}

References

Affected packages

Git / github.com/sssd/sssd

Affected ranges

Type

GIT

Repo

https://github.com/sssd/sssd

Events

Introduced

1a1cf163b78ff4768cc8bfc1e631171bc021e2fe

Last Affected

1a1cf163b78ff4768cc8bfc1e631171bc021e2fe

Database specific

Show details

{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:fedoraproject:sssd:2.12.0:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "2.12.0"
                },
                {
                    "last_affected":  "2.12.0"
                }
            ],
            "source":  "CPE_STRING"
        }
    ]
}

Affected versions

2.*

2.12.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-88252.json"