Koel Vulnerable to SSRF via Podcast Episode Enclosure URLs

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

7.7 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

EPSS

• CVE-2026-47260: 0.30% estimated exploitation activity in the next 30 days; percentile 23.04 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary Koel validates the podcast feed URL via the SafeUrl rule (DNS resolution + public IP check), but the individual episode <enclosure url="..." values extracted from the RSS XML are stored directly into the database without any SSRF validation. When a user plays an episode, the server downloads the full HTTP response from the unvalidated enclosure URL via Http::sink()-get() and streams it back to the user, enabling full-read SSRF against internal services. --- Vulnerability Details Episode URL Stored Without Validation File: app/Services/Podcast/PodcastService.php, line 146 The SafeUrl rule is applied to the podcast feed URL at subscription time (SubscribeToPodcastRequest), but episode enclosure URLs parsed from the feed XML are stored as-is. SSRF Trigger: Full Content Download File: app/Values/Podcast/EpisodePlayable.php, line 42 When an episode is played, PodcastStreamerAdapter::stream() first attempts getStreamableUrl() (OPTIONS/HEAD requests to the episode URL). If no CORS…

Published by the source

29 May 2026, 19:56 UTC

Last modified by the source

12 Jun 2026, 22:01 UTC

Source last checked

26 Oct 2026, 14:49 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-7j2f-6h2r-6cqc

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# Patch Next advisory brief: CVE-2026-47260

Advisory: Koel Vulnerable to SSRF via Podcast Episode Enclosure URLs
IDs: CVE-2026-47260, GHSA-7j2f-6h2r-6cqc
Record: https://patchnext.com/advisories/cve-2026-47260 (revision 1, source checked 26 Oct 2026, 14:49 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: phanan/koel 9.3.5. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist phanan/koel: affected <= 9.3.4; fixed in 9.3.5

## Suggested inspection (read-only)
- Packagist phanan/koel: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on phanan/koel.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-7j2f-6h2r-6cqc (GitHub-reviewed advisory GHSA-7j2f-6h2r-6cqc lists affected ranges: Packagist phanan/koel >=0 <=9.3.4)

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