GitHub Advisoryadvisory · npm
GHSA-5624-2pmv-jx46 Summarize contains a missing authorization vulnerability
MEDIUM
Official page ↗
- Aliases
- CVE-2026-45243
- Ecosystem
- npm
- Packages
- @steipete/summarize
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-862
- Reviewed
- 2026-05-29
Affected packages
• npm @steipete/summarize: < 0.15.0 → fixed in 0.15.0
Description
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.
Related
Alias · CVE (1)
- CVE-2026-45243 Summarize prior to 0.15.1 contains a missing authorization vulnerability in the content script window.postMessage bridge that allows… vulnerability
Weakness · CWE (1)
- CWE-862 Missing Authorization weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-45243 advisory
- https://github.com/steipete/summarize/pull/222 web
- https://github.com/steipete/summarize/commit/357544063af535bd574752622f9eb94be33ee5fd web
- https://github.com/steipete/summarize package
- https://github.com/steipete/summarize/releases/tag/v0.15.1 web
- https://github.com/steipete/summarize/releases/tag/v0.15.2 web
- https://www.vulncheck.com/advisories/summarize-browser-extension-missing-authorization-via-content-script web