CVE-2026-45245 Details
Description
Summarize prior to 0.15.1 contains a vulnerability in the hover summary feature that allows malicious pages to dispatch synthetic mouseover events over attacker-controlled links, causing the extension to make authenticated daemon requests using stored tokens without verifying event trustworthiness. Attackers can place local or private-network URLs behind hoverable links to route authenticated requests through the daemon, potentially accessing sensitive internal endpoints when users interact with attacker-controlled content.
A vulnerability exists in the Steipete Summarize Chrome extension, specifically in versions prior to 0.15.1. The issue arises within the hover summary feature, where malicious pages can send synthetic mouseover events over links controlled by the attacker. This manipulation causes the extension to make authenticated requests to a daemon using stored tokens, without properly verifying the trustworthiness of the events. As a result, attackers could route these requests through the daemon to access sensitive internal endpoints, potentially exposing confidential information, especially if the targeted URLs are local or within a private network.
Users can update to Steipete Summarize version 0.15.2 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 18, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/steipete/summarize/pull/218 | CISA-ADP | ExploitIssue TrackingPatch |
| https://github.com/steipete/summarize/commit/ecbb2c414255aa480a15d0d8b205224c14cfdbcb | [email protected] | Patch |
| https://github.com/steipete/summarize/pull/218 | [email protected] | ExploitIssue TrackingPatch |
| https://github.com/steipete/summarize/releases/tag/v0.15.2 | [email protected] | Release Notes |
| https://www.vulncheck.com/advisories/summarize-unauthorized-daemon-request-via-untrusted-events | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-918 | Server-Side Request Forgery (SSRF) | [email protected] |
| CWE-940 | Improper Verification of Source of a Communication Channel | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| steipete summarize | < 0.15.1 |
CPE
Remediation
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Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 14, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 19, 2026 | Initial Analysis | [email protected] |
| May 18, 2026 | CVE Modified | CISA-ADP |
| May 18, 2026 | New CVE Received | [email protected] |