Secuno
ENNL
Book demo

CVE-2026-45062

FrankenPHP remote code execution

8.1 HIGHEPSS 0.75%
  1. Published10 Jun 2026

Description

FrankenPHP is a modern application server for PHP. From version 1.11.2 to before version 1.12.3, the splitPos() function in cgi.go misuses golang.org/x/text/search with search.IgnoreCase when the request path contains a non-ASCII byte. Two distinct flaws in that fallback let an attacker mislead FrankenPHP into treating a non-.php file as a .php script. In any deployment where the attacker can place content into a file served by FrankenPHP (uploads, file storage, etc.), this can be escalated to remote code execution by crafting a URL whose path triggers either flaw. This issue has been patched in version 1.12.3.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-843178.8
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1,…
CVE-2026-843168.8
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1,…
CVE-2026-571438.8
PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.62,…
CVE-2026-1034138.8
Improper input validation vulnerability in Apache Camel Karavan. When a deployment…
CVE-2026-764688.2
As part of Cisco's ongoing commitment to proactive security and product quality, the…
CVE-2026-764568.6
As part of Cisco's ongoing commitment to proactive security and product quality, the…

Frequently asked

Is CVE-2026-45062 being actively exploited?

CVE-2026-45062 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.75%.

How severe is CVE-2026-45062?

CVE-2026-45062 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 0.75% probability of exploitation.

How do I fix CVE-2026-45062?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-45062 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.