No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.
Description
FrankenPHP before 1.13.4 contains an information disclosure vulnerability in worker mode that fails to clear last HTTP stream response headers between requests, because the reset only happens in RSHUTDOWN, which worker requests skip. Later requests calling http_get_last_response_headers() can read headers fetched by earlier requests on the same worker thread, exposing other users' Set-Cookie or token headers from backend APIs.
Exploits & detection
No public PoC or detection template found yet.
Timeline
- Published: 04 Nov 2026
- Last modified upstream: 04 Nov 2026
Sources & licenses
- CVE / CVSS / CWE
- NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.
- Exploitation
- CISA KEV (CC0) · EPSS by FIRST.org
- References used for the analysis
- https://github.com/php/frankenphp/commit/3fade63bb1c1d246926ed8a00520015f94cdc819
- https://github.com/php/frankenphp/releases/tag/v1.13.4
- https://github.com/php/frankenphp/security/advisories/GHSA-pmvg-8483-mw84
- https://www.vulncheck.com/advisories/frankenphp-before-1.13.4-cross-request-response-header-leak-in-worker-mode
- Analysis, summary and remediation
- © VulnCrest