CVE-2026-16770

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Source

https://cve.org/CVERecord?id=CVE-2026-16770

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-16770.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-16770

Published

2026-08-12T23:12:28.233Z

Modified

2026-08-15T11:31:15.512714136Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

PDF::WebKit versions through 1.2 for Perl allow argument injection into wkhtmltopdf via meta tags in the source document

Details

PDF::WebKit versions through 1.2 for Perl allow argument injection into wkhtmltopdf via meta tags in the source document.

For an HTML string or file source, the constructor collects every <meta name="pdf-webkit-KEY" content="VALUE"> element in the document head through pdfwebkitmetatags and turns each one into a wkhtmltopdf command line option. KEY is normalized to an option name matching --[a-z0-9-]+ but is not checked against an allow list, VALUE is passed through unchanged as the argument that follows it, and a VALUE of "yes" emits the option as a bare flag. BUILD merges the meta derived options last, so they also override the module defaults and the options passed to new. Switches such as --enable-local-file-access and --cookie-jar are reachable this way. The renderer is executed with an argument list rather than a shell command, so this is argument injection and not shell injection.

Any caller that renders untrusted HTML lets the document choose the renderer's options and override those set by the application, including options that read local files into the resulting PDF or write to a chosen path. A URL source is not scanned, and the scan is skipped when XML::LibXML, a recommended dependency, is not installed.

Database specific

{
    "cwe_ids": [
        "CWE-88"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/16xxx/CVE-2026-16770.json",
    "cna_assigner": "CPANSec"
}

References

Affected packages

Git / github.com/kingpong/perl-pdf-webkit

Affected ranges

Type

GIT

Repo

https://github.com/kingpong/perl-pdf-webkit

Events

Introduced

Fixed

23ccc37d77604403c42dfba201d38b7366275955

Database specific

Show details

{
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.2"
        },
        {
            "fixed": "1.2"
        }
    ]
}

Affected versions

v0.*

v0.10

v0.91

v1.*

v1.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-16770.json"