What’s Vulnerable › Vulnerabilities

CVE-2026-45245: Summarize < 0.15.1 Unauthorized Daemon Request via Untrusted Events

• Severity: high (CVSS 7.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-05-18 · updated 2026-10-14
• Weakness: CWE-918

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.

Affected products

• steipete summarize: before 0.15.1 — fixed in 0.15.1

How to fix

Upgrade to a fixed version: steipete summarize 0.15.1. Check the vendor advisory for mitigations.

References

• https://github.com/steipete/summarize/commit/ecbb2c414255aa480a15d0d8b205224c14cfdbcb
• https://github.com/steipete/summarize/pull/218
• https://github.com/steipete/summarize/releases/tag/v0.15.2
• https://www.vulncheck.com/advisories/summarize-unauthorized-daemon-request-via-untrusted-events
• https://github.com/steipete/summarize/pull/218

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