CVE-2026-128017: FrankenPHP before 1.13.4 Double Free in Worker Mode via Non-Form POST
php · frankenphp
Fixed in 1.13.4 · Affected: php frankenphp before 1.13.4 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 44% of scored CVEs
DescriptionCVE.org
FrankenPHP before 1.13.4 contains a double free vulnerability in worker mode that frees SG(request_info).content_type_dup twice when a worker script ends its loop after a non-form POST request. Unauthenticated attackers can send repeated JSON POST requests until the worker loop ends, aborting the whole process when USE_ZEND_ALLOC=0 is set.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- php · frankenphpbefore 1.13.4
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Double Free · Memory Corruption
- Vendor
- php
- Published
- November 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-128017 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.