Summarize contains a missing authorization vulnerability
Summarize prior to 0.15.0 contains a missing authorization vulnerability in the content script window.postMessage bridge that allows malicious pages to perform unauthorized operations on automation artifacts. Attackers can simulate runtime messages with spoofed sender identifiers to list, read, create, overwrite, or delete automation artifacts scoped to the affected tab without proper authorization checks.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | @steipete/summarize | < 0.15.0 | 0.15.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-45243
- https://github.com/steipete/summarize/pull/222
- https://github.com/steipete/summarize/commit/357544063af535bd574752622f9eb94be33ee5fd
- https://github.com/steipete/summarize
- https://github.com/steipete/summarize/releases/tag/v0.15.1
- https://github.com/steipete/summarize/releases/tag/v0.15.2
- https://www.vulncheck.com/advisories/summarize-browser-extension-missing-authorization-via-content-script
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-862- Platform
- npm
- Package
@steipete/summarize- Disclosed
- 18.05.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-5624-2pmv-jx46 - CC BY 4.0
Vulnerability history: @steipete/summarize
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 6
- First → latest
- 05.2026 06.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 4
- Low 1
Disclosures per year
- 2026: 6
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Summarize contains a missing authorization vulnerability this entry
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