What’s Vulnerable › Vulnerabilities

CVE-2026-45244: Summarize < 0.15.1 Unapproved Browser Automation Execution

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-05-18 · updated 2026-10-14
• Weakness: CWE-862

Description

Summarize prior to 0.15.1 contains a missing authorization vulnerability that allows attackers to execute browser automation actions without per-call user approval when the extension automation feature is enabled. Attackers can influence the agent through malicious page or summary content to invoke enabled extension automation tools such as navigation or debugger-backed actions, bypassing the final user approval step when a user interacts 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/e64fe3ecd1bb4fdc181dcfa88c96b9e1914ced0e
• https://github.com/steipete/summarize/pull/219
• https://github.com/steipete/summarize/releases/tag/v0.15.2
• https://www.vulncheck.com/advisories/summarize-unapproved-browser-automation-execution

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