CVE-2026-17552

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Source

https://cve.org/CVERecord?id=CVE-2026-17552

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-17552.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-17552

Aliases

GHSA-6x4w-x68j-ppqq

Published

2026-07-27T18:04:47.993Z

Modified

2026-07-28T04:02:35.077020542Z

Summary

Plack::App::Prerender versions before 0.3.0 for Perl can proxy to an arbitrary host via unvalidated REQUEST_URI concatenation in call

Details

Plack::App::Prerender versions before 0.3.0 for Perl can proxy to an arbitrary host via unvalidated REQUEST_URI concatenation in call.

When the rewrite base is a plain string, the REQUEST_URI is appended to it, with no check that the path starts with a forward slash ('/').

When the rewrite base does not contain a path (which is the standard given in the SYNOPSIS), an attacker can create a request that changes the hostname. A request target starting with an at-sign ('@') changes the base to a RFC 3986 userinfo component.

For example, a rewrite base of "https://example.com" with the submitted request "GET @192.168.1.2/" will send a request to "https://example.com@192.168.1.2/", with the rendered content returned to the attacker.

This allows an attacker to access internal or restricted hosts that only the webserver has access to.

Database specific

{
    "cna_assigner": "CPANSec",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/17xxx/CVE-2026-17552.json",
    "cwe_ids": [
        "CWE-918"
    ]
}

References

Affected packages

Git / github.com/robrwo/perl-plack-app-prerender

Affected ranges

Type

GIT

Repo

https://github.com/robrwo/perl-plack-app-prerender

Events

Introduced

Fixed

b051c0c43fb34fd298fd3c2a0f398a0f60a1bde0

Database specific

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.3.0"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v0.*

v0.1.0

v0.1.1

v0.1.2

v0.2.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-17552.json"