Auth bypass in Steipete Summarize
CVE-2026-45242
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.
EPSS exploit prediction
EPSS: 0.007 (52.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.007 · change: +0.003
Affected products
- Steipete Summarize — versions 0, ec8efd63295656fbfe8743620179c489bc5a242f
Weakness classification (CWE)
References
- github.com/steipete/summarize/releases/tag/v0.15.2 (release-notes, Release Notes)
- github.com/steipete/summarize/pull/220 (issue-tracking, Exploit, Patch, Issue Tracking)
- github.com/steipete/summarize/commit/ec8efd63295656fbfe8743620179c489bc5a242f (Patch, patch)
- www.vulncheck.com/advisories/summarize-path-traversal-via-slidesdir-parameter (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-45242?
- CVE-2026-45242 is a high-severity vulnerability in Steipete Summarize, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-05-18.
- How severe is CVE-2026-45242?
- High severity. CVSS v3 base score is 7.1 out of 10.