CVE-2026-22184

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Source
https://cve.org/CVERecord?id=CVE-2026-22184
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-22184.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-22184
Downstream
Related
Published
2026-01-07T20:25:19.892Z
Modified
2026-07-11T03:55:50.913994868Z
Severity
  • 4.6 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
zlib <= 1.3.1.2 untgz Global Buffer Overflow in TGZfname()
Details

zlib versions up to and including 1.3.1.2 include a global buffer overflow in the untgz utility located under contrib/untgz. The vulnerability is limited to the standalone demonstration utility and does not affect the core zlib compression library. The flaw occurs when a user executes the untgz command with an excessively long archive name supplied via the command line, leading to an out-of-bounds write in a fixed-size global buffer.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22184.json",
    "cwe_ids": [
        "CWE-787"
    ],
    "isDisputed": true
}
References

Affected packages

Git / github.com/madler/zlib

Affected ranges

Type
GIT
Repo
https://github.com/madler/zlib
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
570720b0c24f9686c33f35a1b3165c1f568b96be
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ],
    "cpe": "cpe:2.3:a:zlib:zlib:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.3.1.2"
        }
    ]
}

Affected versions

v0.*
v0.71
v0.79
v0.8
v0.9
v0.91
v0.92
v0.93
v0.94
v0.95
v0.99
v1.*
v1.0-pre
v1.0.1
v1.0.2
v1.0.4
v1.0.5
v1.0.7
v1.0.8
v1.0.9
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.1.4
v1.2.0
v1.2.0.1
v1.2.0.2
v1.2.0.3
v1.2.0.4
v1.2.0.5
v1.2.0.6
v1.2.0.7
v1.2.0.8
v1.2.1
v1.2.1.1
v1.2.1.2
v1.2.10
v1.2.11
v1.2.12
v1.2.13
v1.2.2
v1.2.2.1
v1.2.2.2
v1.2.2.3
v1.2.2.4
v1.2.3
v1.2.3.1
v1.2.3.2
v1.2.3.3
v1.2.3.4
v1.2.3.5
v1.2.3.6
v1.2.3.7
v1.2.3.8
v1.2.3.9
v1.2.4
v1.2.4-pre1
v1.2.4-pre2
v1.2.4.1
v1.2.4.2
v1.2.4.3
v1.2.4.4
v1.2.4.5
v1.2.5
v1.2.5.1
v1.2.5.2
v1.2.5.3
v1.2.6
v1.2.6.1
v1.2.7
v1.2.7.1
v1.2.7.2
v1.2.7.3
v1.2.8
v1.2.9
v1.3
v1.3.1
v1.3.1.2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-22184.json"