Is there a public exploit for CVE-2026-128018?

No public exploit for CVE-2026-128018 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-128018?

CVE-2026-128018 scores CVSS 6.3 (v4.0), rated medium.

What does CVE-2026-128018 affect?

CVE-2026-128018 affects PHP frankenphp.

6.3 Medium

FrankenPHP before 1.13.4 contains a denial of service vulnerability in worker mode where frankenphphandlerequest() returns false without…

CVE-2026-128018

FrankenPHP before 1.13.4 contains a denial of service vulnerability in worker mode where frankenphphandlerequest() returns false without finishing the dequeued request after a fatal error during request startup. Attackers who trigger startup fatal errors against worker scripts that keep calling frankenphphandlerequest() can leave client requests hanging indefinitely while the worker continues running.

Assessment

CVSS: 6.3 (v4.0)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 13 November 2026
Last updated: 13 November 2026
Affected: PHP · frankenphp
Assigner: VulnCheck

CVSS vectorCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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