CVE Explorer
CVE-2026-17552
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 R
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","packageName":"Plack-App-Prerender","product":"Plack::App::Prerender","programFiles":["lib/Plack/App/Prerender.pm"],"programRoutines":[{"name":"Plack::App::Prerender::call"}],"repo":"https://github.com/robrwo/perl-Plack-App-Prerender","vendor":"RRWO","versions":[{"lessThan":"0.3.0","status":"affected","version":"0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:bb31c8d82fdc07daf02156ac8ffe38c795c5887f13383083833d8d1be86bc357 · sha256:76c6ecdf1596b645… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:bb31c8d82fdc07daf02156ac8ffe38c795c5887f13383083833d8d1be86bc357 · sha256:76c6ecdf1596b645… · /containers/adp/1/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-918","description":"CWE-918 Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:bb31c8d82fdc07daf02156ac8ffe38c795c5887f13383083833d8d1be86bc357 · sha256:76c6ecdf1596b645… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"url":"http://www.openwall.com/lists/oss-security/2026/07/28/3"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bb31c8d82fdc07daf02156ac8ffe38c795c5887f13383083833d8d1be86bc357 · sha256:76c6ecdf1596b645… · /containers/adp/0/references/0
{"tags":["patch"],"url":"https://github.com/robrwo/perl-Plack-App-Prerender/commit/2d793dd69e2b6f4e469618ee742bd8402677202d.patch"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bb31c8d82fdc07daf02156ac8ffe38c795c5887f13383083833d8d1be86bc357 · sha256:76c6ecdf1596b645… · /containers/cna/references/2
{"tags":["vendor-advisory"],"url":"https://github.com/robrwo/perl-Plack-App-Prerender/security/advisories/GHSA-6x4w-x68j-ppqq"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bb31c8d82fdc07daf02156ac8ffe38c795c5887f13383083833d8d1be86bc357 · sha256:76c6ecdf1596b645… · /containers/cna/references/0
{"tags":["release-notes"],"url":"https://metacpan.org/release/RRWO/Plack-App-Prerender-v0.3.0/changes"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bb31c8d82fdc07daf02156ac8ffe38c795c5887f13383083833d8d1be86bc357 · sha256:76c6ecdf1596b645… · /containers/cna/references/1
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.