CVE-2026-45242: steipete Summarize path traversal in /v1/summarize daemon endpoint

CVE-2026-45242 · Severity: high · CVSS 7.1 · Published 2026-05-18

Summarize is a tool used to process and extract information from media. A security flaw in its background service allows an authorized user or a malicious local application to force the tool to write or delete files in unintended folders on the computer. This could lead to the corruption of system files or the loss of important data if the tool is manipulated to target sensitive directories.

Technologies: @steipete/summarize (npm), Steipete Summarize. Vendors: npm, Steipete.

Quick answers

Is CVE-2026-45242 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-45242 being exploited in the wild.
How severe is CVE-2026-45242?
High severity, with a CVSS score of 7.1, published 18 May 2026.
Which products and versions are affected?
@steipete/summarize (npm) < 0.15.0, SEMVER:introduced=0,fixed=0.15.0; Steipete Summarize < 0.15.0, < 0.15.1.
Is there a fix for CVE-2026-45242?
Yes. @steipete/summarize (npm): upgrade to 0.15.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-45242 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-45242?
Check whether you run @steipete/summarize (npm) or Steipete Summarize at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • @steipete/summarize (npm): upgrade to 0.15.0 or later
    npm install @steipete/summarize@0.15.0

Technical details

A path traversal vulnerability exists in the /v1/summarize daemon endpoint of the Summarize package. The root cause is the 'slidesDir' request parameter being passed to a path resolution function without proper sandboxing, allowing absolute paths or '..' sequences to escape the intended directory. An authenticated attacker with a valid bearer token can exploit this to write 'slide_*.png' and 'slides.json' files to any writable directory on the host. Furthermore, repeat requests can trigger a cleanup routine that deletes files matching those naming patterns in the targeted directory. The issue is fixed in version 0.15.0 by ignoring the user-supplied slidesDir in daemon mode and forcing output to a pre-defined sandbox.

Affected products

  • steipete @steipete/summarize < 0.15.0

Identifiers

  • CVE-2026-45242
  • GHSA-8jr4-6r33-phwm

Timeline

  • 2026-05-12: other: Fix submitted via pull request
  • 2026-05-18: advisory: GitHub Advisory and NVD entry published
  • 2026-05-18: patched: Version 0.15.0 released

References

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