# CVE-2026-70619: Odysseus Missing Admin Authorization via Embedding Endpoint Routes

Status: published. Published: 2026-08-04. Updated: 2026-11-08.

Odysseus before commit bf325f6 contains a missing authorization vulnerability that allows authenticated non-admin users to manage server-wide embedding backend configuration by invoking endpoint management routes that verify session authentication but omit the admin authorization guard. Attackers can supply an attacker-controlled URL to overwrite the embedding backend persisted in the endpoint configuration file and process environment, causing all subsequent embedding operations including chat messages, RAG queries, memory entries, and vault text to be transmitted in plaintext to the attacker-controlled destination, or delete the endpoint configuration to deny embedding service to all users.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/odysseus-dev/odysseus/commit/bf325f6b2185cb42bc5d8f5713a64aecffb766d4

## Affected products and versions

- odysseus-dev / odysseus (odysseus-dev/odysseus): ≥ 0; < bf325f6b2185cb42bc5d8f5713a64aecffb766d4 (affected, git). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.7 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.66% as of 2026-11-08; percentile 51.71%

- SSVC: exploitation poc; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-862

## Exploit evidence

- exploit: https://aydinnyunus.github.io/2026/06/16/odysseus-embedding-endpoint-takeover/ (CNA: VulnCheck)
- exploit: https://github.com/odysseus-dev/odysseus/issues/132 (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/80 (CNA: VulnCheck; issue-tracking)

- https://github.com/odysseus-dev/odysseus/issues/132 (CNA: VulnCheck; technical-description, exploit, issue-tracking)

- https://github.com/odysseus-dev/odysseus/commit/bf325f6b2185cb42bc5d8f5713a64aecffb766d4 (CNA: VulnCheck; patch)

- https://www.vulncheck.com/advisories/odysseus-missing-admin-authorization-via-embedding-endpoint-routes (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-70619; retrieved 2026-11-08; source updated 2026-11-08

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-70619; retrieved 2026-11-08; source updated Not reported

Revision: a368b9717d09652bf9a8a42de94de23058f6c2866a67228c5cd93943027a1271

Canonical: https://y2.dev/cve/CVE-2026-70619

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