5.4
MEDIUM CVSS 3.1
CVE-2026-108756
Abilityai Trinity through 0.9.5 Missing Authorization in Telegram Binding Routes
Description

Abilityai Trinity through 0.9.5 contains a missing authorization vulnerability in the Telegram router that allows agent-scoped MCP API keys to perform human-only binding operations. Attackers controlling an agent, typically via prompt injection, can send messages through the owner's bot token, replace the binding with their own token, or delete it.

INFO

Published Date :

Oct. 11, 2026, 1:17 p.m.

Last Modified :

Oct. 11, 2026, 1:17 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-108756 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Trinity_project trinity
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 3.1 MEDIUM MITRE-CVE
CVSS 3.1 MEDIUM [email protected]
CVSS 4.0 MEDIUM 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 4.0 MEDIUM [email protected]
Solution
Update Abilityai Trinity to patch the authorization flaw in the Telegram router.
  • Update Abilityai Trinity to version 0.9.6 or later.
  • Restrict MCP API key usage to agent-scoped operations.
  • Implement stricter validation for binding operations.
  • Review agent access controls and permissions.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-108756 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-108756 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-108756 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-108756 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Oct. 11, 2026

    Action Type Old Value New Value
    Added Description Abilityai Trinity through 0.9.5 contains a missing authorization vulnerability in the Telegram router that allows agent-scoped MCP API keys to perform human-only binding operations. Attackers controlling an agent, typically via prompt injection, can send messages through the owner's bot token, replace the binding with their own token, or delete it.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/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:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
    Added CWE CWE-862
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/108xxx/CVE-2026-108756.json">CVE-2026-108756</a>
    Added Reference https://github.com/Abilityai/trinity
    Added Reference https://github.com/Abilityai/trinity/blob/e38c1c0f2567c602541c90c4c92152e99e6ead11/src/backend/routers/telegram.py#L168-L219
    Added Reference https://github.com/Abilityai/trinity/blob/e38c1c0f2567c602541c90c4c92152e99e6ead11/src/backend/routers/telegram.py#L258-L323
    Added Reference https://hackmd.io/@haind/rJ2OBa8sfl
    Added Reference https://www.vulncheck.com/advisories/abilityai-trinity-through-0.9.5-missing-authorization-in-telegram-binding-routes
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.