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Vulnerability record · CVE-2026-70619 · published 4 August 2026

CVE-2026-70619: Missing authorization vulnerability

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.

8.7 CVSS 4.0 High EPSS 0.66% · top 50.6% CWE-862 · Missing authorization Deferred
8.7CVSS 4.0 base score
0.66%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
9 Sep 2026Last modified by NVD

Description

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://aydinnyunus.github.io/2026/06/16/odysseus-embedding-endpoint-takeover/
https://github.com/odysseus-dev/odysseus/commit/bf325f6b2185cb42bc5d8f5713a64aecffb766d4
https://github.com/odysseus-dev/odysseus/issues/132
https://github.com/odysseus-dev/odysseus/issues/80
https://www.vulncheck.com/advisories/odysseus-missing-admin-authorization-via-embedding-endpoint-routes

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Source: NIST National Vulnerability Database (record CVE-2026-70619), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.