CVE-2026-122233
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
73/100
Published: 2026-11-04
Modified: 2026-11-09
First seen: 2026-11-04
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
AT:
Present
VC:
Low
VI:
None
VA:
None
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.
Weakness Classification (1)
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| php | frankenphp | 0 < 1.13.4 |
| php | frankenphp | 0 < 1.13.4 |