What’s Vulnerable › Vulnerabilities

CVE-2026-53781: Summarize < 0.17.0 Disk Exhaustion via Uncapped Media Download

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-11 · updated 2026-10-26
• Weakness: CWE-770

Description

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.

Affected products

• steipete summarize: before 0.17.0 — fixed in 0.17.0

How to fix

Upgrade to a fixed version: steipete summarize 0.17.0. Check the vendor advisory for mitigations.

References

• https://github.com/steipete/summarize/commit/14de194c24c5e0fba4bdb4a6f7766eb6ea3ed750
• https://github.com/steipete/summarize/pull/237
• https://github.com/steipete/summarize/releases/tag/v0.17.0
• https://www.vulncheck.com/advisories/summarize-disk-exhaustion-via-uncapped-media-download

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