CVE-2026-44504 HIGH

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

Vendor Aegra
Product aegra
Weakness CWE-285
Published May 14, 2026
Last update May 16, 2026

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 14, 2026 CVE published
May 16, 2026 Record updated