CVE-2026-90781

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Source
https://cve.org/CVERecord?id=CVE-2026-90781
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90781.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-90781
Downstream
Published
2026-09-13T12:22:01Z
Modified
2026-09-15T08:11:01Z
Severity
  • 4.8 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
alsa-lib through 1.2.16.1 Off-by-One Stack Buffer Overflow in __snd_ctl_ascii_elem_id_parse()
Details

alsa-lib through 1.2.16.1 contains a stack buffer overflow in the __snd_ctl_ascii_elem_id_parse() function that writes one byte past a 64-byte buffer when parsing a name= field with 64 or more characters. Attackers can supply a long control-element identifier string through saved state files or command-line arguments to overwrite adjacent stack memory and crash the calling process.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-193"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90781.json"
}
References

Affected packages

Git / github.com/alsa-project/alsa-lib

Affected ranges

Type
GIT
Repo
https://github.com/alsa-project/alsa-lib
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a7babcb8e6361719bf18fa96f11354d125447500
Fixed
f84cd4ced7b36fddb8e4ee24404cf7c091d27020
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.2.16.1"
        }
    ],
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

v1.*
v1.0.10
v1.0.10rc1
v1.0.10rc2
v1.0.10rc3
v1.0.11
v1.0.11rc1
v1.0.11rc2
v1.0.11rc3
v1.0.11rc4
v1.0.11rc5
v1.0.12
v1.0.12rc1
v1.0.12rc2
v1.0.13
v1.0.13rc1
v1.0.13rc2
v1.0.13rc3
v1.0.14
v1.0.14a
v1.0.14rc1
v1.0.14rc2
v1.0.14rc3
v1.0.14rc4
v1.0.15
v1.0.15rc1
v1.0.15rc2
v1.0.15rc3
v1.0.16
v1.0.16rc1
v1.0.16rc2
v1.0.17
v1.0.17a
v1.0.17rc1
v1.0.17rc2
v1.0.18
v1.0.18rc3
v1.0.19
v1.0.20
v1.0.21
v1.0.21a
v1.0.22
v1.0.23
v1.0.24
v1.0.24.1
v1.0.25
v1.0.26
v1.0.27
v1.0.27.1
v1.0.27.2
v1.0.28
v1.0.29
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.0.9
v1.0.9rc1
v1.0.9rc2
v1.0.9rc3
v1.0.9rc4
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.1.4
v1.1.4.1
v1.1.5
v1.1.6
v1.1.7
v1.1.8
v1.1.9
v1.2.1
v1.2.1.1
v1.2.1.2
v1.2.10
v1.2.11
v1.2.12
v1.2.13
v1.2.14
v1.2.15
v1.2.15.1
v1.2.15.2
v1.2.15.3
v1.2.16
v1.2.16.1
v1.2.2
v1.2.3
v1.2.3.1
v1.2.3.2
v1.2.4
v1.2.5
v1.2.6
v1.2.6.1
v1.2.7
v1.2.7.1
v1.2.7.2
v1.2.8
v1.2.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90781.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "292882466361100373931368979393031581670",
            "length": 2646
        },
        "id": "CVE-2026-90781-155f5ded",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/alsa-project/alsa-lib/commit/f84cd4ced7b36fddb8e4ee24404cf7c091d27020",
        "target": {
            "file": "src/control/ctlparse.c",
            "function": "__snd_ctl_ascii_elem_id_parse"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "326929841161789934085150034515576501591",
                "267747721409598369006592612674345384500",
                "301856141397060108673662845160169341044",
                "306380434517575392323718783662267879378",
                "250296632222991606297011836125014894552",
                "265697461092583707450594198292581353686",
                "305573830248761764787914249718944588198",
                "306380434517575392323718783662267879378"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-90781-b5feb41a",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/alsa-project/alsa-lib/commit/f84cd4ced7b36fddb8e4ee24404cf7c091d27020",
        "target": {
            "file": "src/control/ctlparse.c"
        }
    }
]
vanir_signatures_modified 
"2026-09-15T08:11:01Z"