# The Media module comes with support for oEmbed. The oEmbed specification contains two discovery mechanisms, via \`providers.json\` and via URL discovery.

Advisory record · `DRUPAL-CORE-2026-008`

- **Identifiers:** `DRUPAL-CORE-2026-008` · `BIT-drupal-2026-55807` · `CVE-2026-55807`
- **State:** Confirmed
- **Severity:** CVSS 3.1 Low
- **Critical:** No
- **Weakness (CWE):** [CWE-918](https://cwe.mitre.org/data/definitions/918.html)
- **Tags:** [Server-side request forgery (SSRF)](https://agentprime.io/advisories/tag/ssrf.md)
- **Published:** 17 Jun 2026
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by OSV at 17 Jun 2026, 18:57 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `drupal/core` (Packagist): affected `<10.5.12 || >=10.6.0, <10.6.11 || >=11.2.0, <11.2.14 || >=11.3.0, <11.3.12 || >=11.0.0, <11.1.0 || >=11.1.0, <11.2.0`; fixed in `10.5.12`, `10.6.11`, `11.2.14`, `11.3.12`, `11.1.0`, `11.2.0`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 3.1 Low, CVSS 3.1: `CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N`, from ADP (CISA-ADP)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0022, the 12th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:06 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/DRUPAL-CORE-2026-008)

## Sources

- [OSV: DRUPAL-CORE-2026-008](https://osv.dev/vulnerability/DRUPAL-CORE-2026-008)
- <https://www.drupal.org/sa-core-2026-008>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/DRUPAL-CORE-2026-008>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/DRUPAL-CORE-2026-008/>. Everything for agents: <https://agentprime.io/llms.txt>.