Summarize < 0.17.0 SSRF via podcast:transcript URL fetch
CVE-2026-53782

6.3MEDIUM

Key Information:

Vendor

Steipete

Status
Summarize
Vendor
CVE Published:
11 June 2026

What is CVE-2026-53782?

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.

Affected Version(s)

summarize 0

References

https://github.com/steipete/summarize/releases/tag/v0.17.0
release-notes
https://github.com/steipete/summarize/pull/239
issue-tracking
https://github.com/steipete/summarize/commit/3c5522440c48...
patch

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Chia Min Jun Lennon
.