Server-Side Request Forgery in Odysseus Affects Internal Network Security
CVE-2026-70620

6.1MEDIUM

Key Information:

Vendor

Odysseus-dev

Status
Odysseus
Vendor
CVE Published:
4 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-70620?

The Odysseus platform, prior to commit 87babb5, is vulnerable to a server-side request forgery (SSRF) flaw that allows attackers with admin privileges to exploit the embedding endpoint configuration. This vulnerability permits the injection of arbitrary URLs without necessary validations, enabling attacks that can query internal network resources. Attackers can utilize loopback addresses, RFC 1918 ranges, or link-local addresses through the embedding endpoint API. This may lead to unauthorized access to sensitive metadata services of cloud instances, internal APIs, and other reachable hosts from the compromised server, increasing the risk of data exposure and service manipulation.

Affected Version(s)

odysseus 0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-70620 - Proof of Concept

CVE-2026-70620 - Proof of Concept

References

https://aydinnyunus.github.io/2026/06/16/odysseus-embeddi...
technical-descriptionexploit
https://github.com/odysseus-dev/odysseus/issues/132
technical-descriptionexploit
https://github.com/odysseus-dev/odysseus/pull/1206
issue-tracking

CVSS V4

Score:
6.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yunus AYDIN
.