CVE-2026-77937Published

Letta through 0.16.8 Cross-Tenant Impersonation via user_id Header

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-77937

Published

letta

https://pypi.org

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "letta-ai",
                    "product": "letta",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "lessThanOrEqual": "0.16.8",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "packageURL": "pkg:pypi/letta",
                    "collectionURL": "https://pypi.org",
                    "repo": "https://github.com/letta-ai/letta"
                }

Original source record · Cite this exact observation · Complete original publisher JSON