---
id: CVE-2026-70620
title: >-
  Odysseus before commit 87babb5 contains a server-side request forgery
  vulnerability that allows admin-privileged attackers to direct the server to
  probe internal network resources by supplying arbitrary URLs to the embedding
  endpoint con…
summary: >-
  Odysseus before commit 87babb5 contains a server-side request forgery
  vulnerability that allows admin-privileged attackers to direct the server to
  probe internal network resources by supplying arbitrary URLs to the embedding
  endpoint con…
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N'
cwe:
  - CWE-918
published: '2026-08-04'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T20:40:01.933'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-70620'
references:
  - url: >-
      https://aydinnyunus.github.io/2026/06/16/odysseus-embedding-endpoint-takeover/
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/odysseus-dev/odysseus/commit/87babb58d57897089b133b313e2ab6d09e7ef54e
    label: disclosure@vulncheck.com
  - url: 'https://github.com/odysseus-dev/odysseus/issues/132'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/odysseus-dev/odysseus/pull/1206'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/odysseus-ssrf-via-embedding-endpoint-configuration
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00459
epssPercentile: 0.37084
ingestedAt: '2026-09-09T21:22:45.523Z'
---

## Overview

Odysseus before commit 87babb5 contains a server-side request forgery vulnerability that allows admin-privileged attackers to direct the server to probe internal network resources by supplying arbitrary URLs to the embedding endpoint configuration without scheme, host, IP range, or DNS rebind validation. Attackers can submit loopback addresses, RFC 1918 ranges, or link-local addresses through the embedding endpoint API to partially read responses from cloud instance metadata services, internal APIs, and other hosts reachable from the server.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.