CVE-2026-111273

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-111273
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111273.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-111273
Downstream
Published
2026-10-15T21:43:19Z
Modified
2026-10-21T02:55:10Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
unarr through 1.1.1 Off-by-One Heap Buffer Overflow via tar_get_name
Details

unarr through 1.1.1 contains an off-by-one heap-based buffer overflow in tar_get_name() in tar/parse-tar.c, reachable through the ar_entry_get_name() API. Attackers can supply a crafted TAR archive with a full ustar prefix and name to write a NUL byte past the allocation, corrupting heap memory and crashing the process.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-193"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111273.json"
}
References

Affected packages

Git / github.com/selmf/unarr

Affected ranges

Type
GIT
Repo
https://github.com/selmf/unarr
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
b211040df83dee513362cdeb9bd87afa26fd5e38
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "1.1.1"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "1.1.1"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Affected versions

v1.*
v1.0.0
v1.0.1
v1.1.0
v1.1.0.beta1
v1.1.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111273.json"