PatchSiren cyber security CVE debrief
CVE-2026-53782 steipete CVE debrief
CVE-2026-53782 is a server-side request forgery vulnerability in Summarize before version 0.17.0. This vulnerability 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.
- Vendor
- steipete
- Product
- summarize
- CVSS
- MEDIUM 6.3
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-11
- Original CVE updated
- 2026-06-11
- Advisory published
- 2026-06-11
- Advisory updated
- 2026-06-11
Who should care
Users of Summarize before version 0.17.0 who are concerned about the security of their podcast RSS feed and transcript content.
Technical summary
The vulnerability has a CVSS score of 6.3 and is classified as MEDIUM severity. It can be exploited by attackers who control a podcast RSS feed, allowing them to direct the host to fetch transcript content from restricted destinations.
Defensive priority
MEDIUM
Recommended defensive actions
- Update Summarize to version 0.17.0 or later.
- Restrict access to podcast RSS feeds to trusted sources.
- Monitor for suspicious activity in the summarization flow.
Evidence notes
The vulnerability was reported by Vulncheck and is tracked under CVE-2026-53782.
Official resources
CVE-2026-53782 was published on 2026-06-11T20:16:25.787Z and modified on 2026-06-11T20:50:49.480Z.