8.6
HIGH CVSS 4.0
CVE-2026-44504
Aegra: Cross-user run injection in /threads/{thread_id}/runs (IDOR)
Description

Aegra is a drop-in replacement for LangSmith Deployments. Prior to 0.9.7, with multiple authenticated users on a shared instance are vulnerable to a cross-tenant IDOR. Any authenticated attacker, given another user's thread_id, can execute graph runs against the user's thread, read the user's full checkpoint state, and inject arbitrary messages into the user's conversation history. This vulnerability is fixed in 0.9.7.

INFO

Published Date :

May 14, 2026, 4:16 p.m.

Last Modified :

May 14, 2026, 6:13 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-44504 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.

No affected product recoded yet

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 4.0 HIGH [email protected]
Solution
Update Aegra to version 0.9.7 or later to fix the cross-tenant IDOR vulnerability.
  • Update Aegra to version 0.9.7 or later.
  • Verify the update resolves the cross-tenant IDOR issue.
  • Implement strict access controls for user data.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-44504.

URL Resource
https://github.com/aegra/aegra/security/advisories/GHSA-m98r-6667-4wq7
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-44504 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-2026-44504 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-2026-44504 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-44504 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]

    May. 14, 2026

    Action Type Old Value New Value
    Added Description Aegra is a drop-in replacement for LangSmith Deployments. Prior to 0.9.7, with multiple authenticated users on a shared instance are vulnerable to a cross-tenant IDOR. Any authenticated attacker, given another user's thread_id, can execute graph runs against the user's thread, read the user's full checkpoint state, and inject arbitrary messages into the user's conversation history. This vulnerability is fixed in 0.9.7.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/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 CWE CWE-285
    Added CWE CWE-639
    Added Reference https://github.com/aegra/aegra/security/advisories/GHSA-m98r-6667-4wq7
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.