CVE-2026-45245

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.

References

https://www.vulncheck.com/advisories/summarize-unauthorized-daemon-request-via-untrusted-events

https://github.com/steipete/summarize/releases/tag/v0.15.2

https://github.com/steipete/summarize/pull/218

https://github.com/steipete/summarize/commit/ecbb2c414255aa480a15d0d8b205224c14cfdbcb

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4