CVE-2026-45245
HIGH7.4EPSS 0.01%Summarize's hover summary feature allows malicious pages to dispatch synthetic mouseover events over attacker-controlled links
Published: 5/18/2026Modified: 5/29/2026
Description
Summarize prior to 0.15.0 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 packages (1)
- npm/@steipete/summarizefrom 0, < 0.15.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N |
References (7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-45245
- PATCHhttps://github.com/steipete/summarize
- WEBhttps://github.com/steipete/summarize/commit/ecbb2c414255aa480a15d0d8b205224c14cfdbcb
- WEBhttps://github.com/steipete/summarize/pull/218
- WEBhttps://github.com/steipete/summarize/releases/tag/v0.15.1
- WEBhttps://github.com/steipete/summarize/releases/tag/v0.15.2
- WEBhttps://www.vulncheck.com/advisories/summarize-unauthorized-daemon-request-via-untrusted-events