---
id: "CVE-2026-55190"
kind: "vulnerability"
aliases: ["CVE-2026-55190"]
title: "Event Schedule: SSRF guard bypass lets imports reach internal services"
severity: "medium"
cvss: 6.5
epss: 0.00361
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["event-schedule", "package", "php", "self-hosted"]
not_affected_if: ["default-config"]
published_at: "2026-10-23T13:17:09+00:00"
first_seen_at: "2026-10-23T21:57:33+00:00"
updated_at: "2026-10-25T12:38:50+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55190", "first_seen_at": "2026-10-23T21:57:33+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-55190", "first_seen_at": "2026-10-25T12:38:50+00:00"}]
---

# Event Schedule: SSRF guard bypass lets imports reach internal services

Event Schedule versions 1.0.0 and earlier have an SSRF guard on user-supplied import URLs that can be bypassed in two ways. An attacker can make the server fetch localhost or internal services and import the response as events.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Event Schedule version against `1.0.0` and earlier
- Look for the `App\Utils\UrlUtils::isUrlSafe()` check and the `ImportCuratorEvents` import path in the codebase
- Review whether the import feature is reachable by untrusted users

## Fix

- No patch was publicly available at publication; unknown whether a fixed version exists
- Restrict or disable the curator event import feature until a fix is released
- Block outbound requests from the app server to internal and localhost addresses at the network layer

## Timeline

- 2026-10-23T21:57:33+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-55190
- 2026-10-25T12:38:50+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-55190

## From the sources

Event Schedule is an open-source platform to share events, sell tickets and bring communities together. In versions 1.0.0 and prior, App\Utils\UrlUtils::isUrlSafe() is the SSRF guard applied to user-supplied import URLs. It can be bypassed two ways, both reaching internal/localhost services when the URL is later fetched by ImportCuratorEvents (Http::get($url) then the response body is parsed and imported as events, and file_get_contents($ogImage)). At time of publication, there are no publicly available patches.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_