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  4. CVE 2026 128025 frankenphp before 1130 cgi path split boundary
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Back to active CVEs
Medium · CVSS 6.9CVE-2026-128025

FrankenPHP before 1.13.0 CGI Path-Split Boundary Bypass via splitPosCVE-2026-128025

Answer in brief

CVE-2026-128025 records a Medium severity (CVSS 6.9) vulnerability in FrankenPHP before 1.13.0 CGI Path-Split Boundary Bypass via splitPos. The current sources do not mark it as known exploited. The current feed maps php/frankenphp (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 13, 2026Updated Nov 13, 2026Source checked Nov 13, 2026First seen by HOL Nov 13, 2026Material review Nov 13, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.9
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 6.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps php/frankenphp (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
php/frankenphpgeneric>=0 <1.13.01.13.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for php/frankenphp.
  2. 2Review the reported fix. Update php/frankenphp to 1.13.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 13, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 13, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 13, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

FrankenPHP before 1.13.0 contains a path-split interpretation conflict in splitPos in cgi.go that allows unauthenticated attackers to execute protected PHP scripts by embedding .php inside a filename component. Attackers can request paths like /uploads/a.php.txt/b.php to execute uploads/a.php despite route-level or WAF deny rules and forge PATH_INFO, SCRIPT_NAME, and PHP_SELF values.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-436
Source
CVE List V5
Source checked
Nov 13, 2026
References
2 linked sources
Open source record