CVE-2026-70620
Odysseus SSRF via Embedding Endpoint Configuration
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| odysseus odysseus-dev odysseus-dev/odysseus
github |
≥ 0; < 87babb58d57897089b133b313e2ab6d09e7ef54e (affected, git)
Other versions: affected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 6.1 medium |
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 6.8 medium |
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N | CNA: VulnCheck |
Exploit evidence
- https://aydinnyunus.github.io/2026/06/16/odysseus-embedding-endpoint-takeover/
exploit · CNA: VulnCheck - https://github.com/odysseus-dev/odysseus/issues/132
exploit · CNA: VulnCheck
References
- https://aydinnyunus.github.io/2026/06/16/odysseus-embedding-endpoint-takeover/CNA: VulnCheck · technical-description, exploit
- https://github.com/odysseus-dev/odysseus/issues/132CNA: VulnCheck · technical-description, exploit, issue-tracking
- https://github.com/odysseus-dev/odysseus/pull/1206CNA: VulnCheck · issue-tracking, patch
- https://github.com/odysseus-dev/odysseus/commit/87babb58d57897089b133b313e2ab6d09e7ef54eCNA: VulnCheck · patch
- https://www.vulncheck.com/advisories/odysseus-ssrf-via-embedding-endpoint-configurationCNA: VulnCheck · third-party-advisory
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