CVE-2026-97151

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Source
https://cve.org/CVERecord?id=CVE-2026-97151
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97151.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-97151
Published
2026-09-24T03:08:15Z
Modified
2026-09-26T03:30:22Z
Severity
  • 8.4 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
[none]
Details

mammoth (aka mammoth.js) before 1.12.2 is vulnerable to prototype pollution when reading the styles defined in a document. Converting a crafted .docx file allows an attacker to add arbitrary properties to Object.prototype. In 1.11.0 through 1.12.1, applications that convert further documents in the same process and return the converted HTML can also disclose the contents of local server files (to the party supplying the documents) by setting externalFileAccess to true.

Database specific 
{
    "cna_assigner":  "mitre",
    "cwe_ids":  [
        "CWE-1321"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97151.json"
}
References

Affected packages

Git / github.com/mwilliamson/mammoth.js

Affected ranges

Type
GIT
Repo
https://github.com/mwilliamson/mammoth.js
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
870603494b464c737b0a2200742370332142d516
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.12.2"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

0.*
0.1.0
0.1.1
0.1.2
0.1.3
0.1.4
0.1.5
0.1.6
0.2.0
0.2.1
0.2.2
0.3.0
0.3.1
0.3.10
0.3.11
0.3.12
0.3.13
0.3.14
0.3.15
0.3.16
0.3.17
0.3.18
0.3.19
0.3.2
0.3.20
0.3.21
0.3.22
0.3.23
0.3.24
0.3.25
0.3.25-pre.1
0.3.26
0.3.27
0.3.28
0.3.28-pre.1
0.3.29
0.3.3
0.3.30
0.3.31
0.3.32
0.3.33
0.3.4
0.3.5
0.3.6
0.3.7
0.3.8
0.3.9
1.*
1.0.0
1.0.1
1.0.2
1.0.3
1.0.4
1.10.0
1.11.0
1.12.0
1.12.1
1.2.0
1.2.1
1.2.2
1.2.3
1.2.4
1.2.5
1.3.0
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
1.3.6
1.4.0
1.4.1
1.4.10
1.4.11
1.4.12
1.4.13
1.4.14
1.4.15
1.4.16
1.4.17
1.4.18
1.4.19
1.4.2
1.4.20
1.4.21
1.4.3
1.4.4
1.4.5
1.4.6
1.4.7
1.4.8
1.4.9
1.5.0
1.5.1
1.6.0
1.7.0
1.7.1
1.7.2
1.8.0
1.9.0
1.9.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97151.json"