CVE-2026-78156

See a problem?
Please try reporting it to the source first.

Source

https://cve.org/CVERecord?id=CVE-2026-78156

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-78156.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-78156

Published

2026-08-23T23:45:09Z

Modified

2026-10-28T11:17:54Z

Severity

2.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P CVSS Calculator

Summary

Open5GS S6a Authentication-Information-Request hss-s6a-path.c hss_ogs_diam_s6a_air_cb heap-based overflow

Details

A security vulnerability has been detected in Open5GS 2.8.0. Affected by this issue is the function hss_ogs_diam_s6a_air_cb of the file src/hss/hss-s6a-path.c of the component S6a Authentication-Information-Request Handler. Such manipulation of the argument Visited-PLMN-Id leads to heap-based buffer overflow. The attack may be performed from remote. The name of the patch is a9c82ee0b590d76a581b0580cb46b598984e2392. A patch should be applied to remediate this issue.

Database specific

{
    "cna_assigner":  "VulDB",
    "cwe_ids":  [
        "CWE-119",
        "CWE-122"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78156.json"
}

References

Affected packages

Git / github.com/open5gs/open5gs

Affected ranges

Type

GIT

Repo

https://github.com/open5gs/open5gs

Events

Introduced

157f611a530e292e40ec50f9d23f0ef5d4fcd6a6

Fixed

a9c82ee0b590d76a581b0580cb46b598984e2392

Database specific

Show details

{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "2.8.0"
                },
                {
                    "last_affected":  "2.8.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandaloneSingleVersion"
        },
        {
            "range":  [
                {
                    "fixed":  "a9c82ee0b590d76a581b0580cb46b598984e2392"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

2.*

2.8.0

v2.*

v2.8.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-78156.json"

vanir_signatures

[
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "45464812951928575338228865315835797047",
            "length":  8650
        },
        "id":  "CVE-2026-78156-51fef699",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/open5gs/open5gs/commit/a9c82ee0b590d76a581b0580cb46b598984e2392",
        "target":  {
            "file":  "src/hss/hss-s6a-path.c",
            "function":  "hss_ogs_diam_s6a_air_cb"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "181562297812172714094757837674189041500",
                "280608706871569464997531268392152434205",
                "67445969767720346783620262027047762357",
                "335586561701890612679618581176031040271",
                "63364199899361922927745716383322094646",
                "60678863165849920517673359203133975129",
                "124669432836315908818519177920041457474",
                "137084497811222848774838788039007936153",
                "190869654140963855040566689815114242291"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-78156-653c6d63",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/open5gs/open5gs/commit/a9c82ee0b590d76a581b0580cb46b598984e2392",
        "target":  {
            "file":  "src/hss/hss-s6a-path.c"
        }
    }
]

vanir_signatures_modified

"2026-10-28T11:17:54Z"