CVE-2026-32945

PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a Heap-based Buffer Overflowvulnerability in the DNS parser's name length handler. Thisimpacts applications using PJSIP's built-in DNS resolver, such as those configured with pjsuaconfig.nameserver or UaConfig.nameserver in PJSUA/PJSUA2. It does not affect users who rely on the OS resolver (e.g., getaddrinfo()) by not configuring a nameserver, or those using an external resolver via pjsipresolversetextresolver(). This issue is fixed in version 2.17. For users unable to upgrade, a workaround is to disable DNS resolution in the PJSIP config (by setting nameservercount to zero) or to use an external resolver implementation instead.

Database specific

{
    "cwe_ids": [
        "CWE-122"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32945.json",
    "cna_assigner": "GitHub_M"
}

References

Affected packages

Git / github.com/pjsip/pjproject

Affected ranges

Type

GIT

Repo

https://github.com/pjsip/pjproject

Events

Introduced

Fixed

5a457451fa2712ba18e12b01738e8ff3af2b26fd

Fixed

5311aee398ae9d623829a6bad7b679a193c9e199

Database specific

{
    "cpe": "cpe:2.3:a:pjsip:pjsip:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.17"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

2.*

2.10

2.11

2.12

2.13

2.14

2.15

2.16

Database specific

vanir_signatures

[
    {
        "source": "https://github.com/pjsip/pjproject/commit/5311aee398ae9d623829a6bad7b679a193c9e199",
        "signature_version": "v1",
        "signature_type": "Function",
        "digest": {
            "function_hash": "322123608833366153724552989250038448616",
            "length": 949.0
        },
        "deprecated": false,
        "id": "CVE-2026-32945-86afcf85",
        "target": {
            "function": "get_name",
            "file": "pjlib-util/src/pjlib-util/dns.c"
        }
    },
    {
        "source": "https://github.com/pjsip/pjproject/commit/5311aee398ae9d623829a6bad7b679a193c9e199",
        "signature_version": "v1",
        "signature_type": "Line",
        "digest": {
            "line_hashes": [
                "264949189043664718990654898728157479626",
                "161875752343422826252201417836625224675",
                "52373331600092458484224350296297334007",
                "208200197820416807573589979754305500114",
                "84578190726999691662658596078196574153",
                "52373331600092458484224350296297334007"
            ],
            "threshold": 0.9
        },
        "deprecated": false,
        "id": "CVE-2026-32945-a9672f0d",
        "target": {
            "file": "pjlib-util/src/pjlib-util/dns.c"
        }
    },
    {
        "source": "https://github.com/pjsip/pjproject/commit/5311aee398ae9d623829a6bad7b679a193c9e199",
        "signature_version": "v1",
        "signature_type": "Function",
        "digest": {
            "function_hash": "210276497721837895778913101976107396684",
            "length": 989.0
        },
        "deprecated": false,
        "id": "CVE-2026-32945-ec5963f9",
        "target": {
            "function": "get_name_len",
            "file": "pjlib-util/src/pjlib-util/dns.c"
        }
    }
]

vanir_signatures_modified

"2026-07-15T17:32:59Z"

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32945.json"