CVE-2026-103678

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

Source

https://cve.org/CVERecord?id=CVE-2026-103678

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103678.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-103678

Downstream

Published

2026-10-01T11:34:48Z

Modified

2026-10-21T02:54:31Z

Severity

5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L CVSS Calculator

Summary

Tnef: heap out-of-bounds read in get_rtf_data_from_buf() via uncompressed rtf mapi value

Details

A flaw was found in tnef. An attacker can exploit this vulnerability by providing a specially crafted file containing uncompressed Rich Text Format (RTF) data. Because the application fails to properly validate input buffer boundaries before copying data in get_rtf_data_from_buf(), reading beyond the allocated memory occurs. This flaw can cause the application to crash, leading to a Denial of Service (DoS), or leak sensitive memory contents into extracted output files.

Database specific

{
    "cna_assigner":  "fedora",
    "cwe_ids":  [
        "CWE-125"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103678.json"
}

References

Affected packages

Git / github.com/verdammelt/tnef

Affected ranges

Type

GIT

Repo

https://github.com/verdammelt/tnef

Events

Introduced

Last Affected

8edd0e046736764c6decc8cd6e0e739438408f3e

Database specific

Show details

{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "1.4.18"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "cpe":  "cpe:2.3:a:tnef_project:tnef:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "1.4.18"
                }
            ],
            "source":  "CPE_RANGE"
        }
    ]
}

Affected versions

1.*

1.4.10

1.4.11

1.4.12

1.4.14

1.4.15

1.4.16

1.4.17

1.4.18

TNEF-1.*

TNEF-1.4.10

TNEF-1.4.11

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103678.json"