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
- https://github.com/steipete/summarize/pull/220
- https://github.com/steipete/summarize/commit/ec8efd63295656fbfe8743620179c489bc5a242f
- https://github.com/steipete/summarize/releases/tag/v0.15.2
- https://www.vulncheck.com/advisories/summarize-path-traversal-via-slidesdir-parameter
- https://github.com/steipete/summarize/releases/tag/v0.15.1