CVE-2026-53782

Description

Summarize before 0.17.0 contains a server-side request forgery vulnerability that allows attackers who control a podcast RSS feed to direct the host to fetch transcript content from loopback addresses, link-local addresses, RFC 1918 private ranges, or other reserved destinations by supplying malicious podcast:transcript URL values. Attackers can bypass protections through DNS rebinding and redirect-based techniques, as redirect targets are not revalidated and hostnames are not resolved before request dispatch, exposing internal service responses through the summarization flow.

CVSS Vector

References

• https://github.com/steipete/summarize/commit/3c5522440c4833dde033e226baa39e6dda1dfc75
• https://github.com/steipete/summarize/pull/239
• https://github.com/steipete/summarize/releases/tag/v0.17.0
• https://www.vulncheck.com/advisories/summarize-ssrf-via-podcast-transcript-url-fetch