CVE-2026-53782: @steipete/summarize Transcript URL Fetch Vulnerability

MODERATE
Advisory Identifier: GHSA-3vx2-vqx8-jxfg
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CVSS 7.4
CWE-918
Published
Advisory Summary

CVE-2026-53782 is a MODERATE (CVSS 7.4) transcript url fetch vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting @steipete/summarize libraries in the npm ecosystem. The issue involves transcript url fetch. Remediation is available by upgrading affected packages to version 0.17.0.

CVE-2026-53782 at a Glance

CVE Identifier CVE-2026-53782
GHSA Identifier GHSA-3vx2-vqx8-jxfg
Severity MODERATE
CVSS v3.1 Base Score 7.4
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product @steipete/summarize
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-53782

To remediate this vulnerability, upgrade all affected @steipete/summarize dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

@steipete/summarize fixed: 0.17.0 
npm install @steipete/summarize@0.17.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls @steipete/summarize

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-53782, inspect your project dependencies using npm:

npm ls @steipete/summarize

Analyze the terminal output to locate any version of @steipete/summarize in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.17.0), your application is affected.

Note: The npm ls @steipete/summarize command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In @steipete/summarize, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2026-53782 Affected @steipete/summarize Versions

1 component(s)
Fixed Versions:
0.17.0
Product / Package Ecosystem Affected Versions Fixed Version
@steipete/summarize
npm/@steipete/summarize
npm
< 0.17.0
0.17.0

References

NVD — CVE-2026-53782 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53782
@steipete/summarize Source Repository REPOSITORY
https://github.com/steipete/summarize/pull/239
Security Fix Commit FIX COMMIT
https://github.com/steipete/summarize/commit/3c5522440c4833dde033e226baa39e6dda1dfc75
@steipete/summarize Source Repository REPOSITORY
https://github.com/steipete/summarize
@steipete/summarize Release RELEASE
https://github.com/steipete/summarize/releases/tag/v0.17.0
www.vulncheck.com/advisories/summariz... WEB
https://www.vulncheck.com/advisories/summarize-ssrf-via-podcast-transcript-url-fetch

Frequently Asked Questions

What is CVE-2026-53782?
CVE-2026-53782 is a security vulnerability in @steipete/summarize involving transcript URL fetch under CWE-918: Server-Side Request Forgery (SSRF).
Which @steipete/summarize versions are affected?
Affected versions include releases prior to 0.17.0 across affected packages: @steipete/summarize.
What version fixes CVE-2026-53782?
Upgrading to 0.17.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is @steipete/summarize affected?
Yes, @steipete/summarize is affected in releases prior to 0.17.0. Upgrade your dependency to 0.17.0 or later.
What is the CVSS score of CVE-2026-53782?
CVE-2026-53782 has a CVSS v3.1 base score of 7.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N.
What CWE is associated with CVE-2026-53782?
CVE-2026-53782 is classified under CWE-918: Server-Side Request Forgery (SSRF) (The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.).
How can I check npm dependencies for CVE-2026-53782?
Run the dependency tree command: 'npm ls @steipete/summarize'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-3vx2-vqx8-jxfg",
  "modified" : "2026-08-20T18:33:58Z",
  "published" : "2026-06-11T21:31:57Z",
  "aliases" : [ "CVE-2026-53782" ],
  "summary" : "@steipete/summarize vulnerable to SSRF via podcast:transcript URL fetch",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@steipete/summarize"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.17.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-53782"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/steipete/summarize/pull/239"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/steipete/summarize/commit/3c5522440c4833dde033e226baa39e6dda1dfc75"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/steipete/summarize"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/steipete/summarize/releases/tag/v0.17.0"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/summarize-ssrf-via-podcast-transcript-url-fetch"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-20T18:33:58Z",
    "nvd_published_at" : "2026-06-11T20:16:25Z"
  }
}