# CVE-2026-70619 — odysseus-dev odysseus

> As of 2026-08-05, CVE-2026-70619 is a HIGH-severity vulnerability in odysseus-dev odysseus, CVSS v3.1 8.8, EPSS 0.3% (29.0th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-70619 as of 2026-08-05; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-08-05

## What is CVE-2026-70619?

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.

The record classifies CVE-2026-70619 under weakness class [CWE-862](https://intel.threadlinqs.com/cwe/CWE-862). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 62 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 8.8 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **CVSS v4.0 base score:** 8.7 (`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`)
- **EPSS (FIRST):** 0.3% probability of exploitation in the next 30 days, higher than 29.0% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 7.6/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-04, last modified 2026-08-05

## Is CVE-2026-70619 being exploited?

Weaponised exploit code for CVE-2026-70619 is publicly available. 1 public proof-of-concept repository is tracked for this identifier. It currently carries a trending score of 45 in the Threadlinqs vulnerability feed.

- [trickest/cve](https://github.com/trickest/cve/blob/main/2026/CVE-2026-70619.md) (trickest)

## Affected products and versions

- **odysseus-dev**: odysseus

## How to fix CVE-2026-70619

No vendor patch reference has been recorded for CVE-2026-70619 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-70619

No threat campaign in the Threadlinqs corpus currently references CVE-2026-70619, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-08-06. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com — patch](https://github.com/odysseus-dev/odysseus/commit/bf325f6b2185cb42bc5d8f5713a64aecffb766d4)

**Exploit and proof of concept**

- [aydinnyunus.github.io — technical description](https://aydinnyunus.github.io/2026/06/16/odysseus-embedding-endpoint-takeover/)
- [github.com — technical description](https://github.com/odysseus-dev/odysseus/issues/132)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://www.vulncheck.com/advisories/odysseus-missing-admin-authorization-via-embedding-endpoint-routes)

**Issue tracking and product pages**

- [github.com — issue tracking](https://github.com/odysseus-dev/odysseus/issues/80)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-70619
Full detection coverage and IOCs for threats exploiting CVE-2026-70619 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp