GHSA-q9xm-f36c-xm3q: @steipete/summarize is Vulnerable to Disk Exhaustion via Crafted Media Responses
Summarize before 0.17.0 contains a resource exhaustion vulnerability that allows remote attackers to cause disk exhaustion by serving media responses that bypass the enforced size limit through missing or misreported Content-Length headers, chunked transfer encoding, or failed HEAD requests. Attackers who control a podcast feed or media URL can stream an unbounded response to local storage via the temp-file download path, exhausting disk or system resources on the host running the CLI.
Details
Original advisory: https://github.com/advisories/GHSA-q9xm-f36c-xm3q
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-537810.33% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-53781 | coverage & exploitation status | NVD · CVE.org |
More from GitHub Security Advisories
- mediumGHSA-xm43-3m56-w3wf: Ghost: Paid gift memberships obtainable at minimal cost via the donations feature2026-08-04
- mediumGHSA-chgm-3698-jm42: Ghost: Member existence leak via magic link sign-in response2026-08-04
- highGHSA-xpp7-93x6-v29m: XSS in Ghost's ActivityPub client2026-08-04
- mediumGHSA-7mpp-r37j-x5wh: Ghost: Session Fixation in Ghost Admin2026-08-04
- mediumGHSA-cjc9-q5gf-327p: Ghost: Theme Upload Path Traversal2026-08-04