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CVE-2026-90562

LangBot before 4.10.11 Authentication Bypass via Weak Recovery Key

CVSS 4.0 9.2 CRITICALCVSS 3.1 8.1 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-90562

Published

LangBot before 4.10.11 generates password recovery keys with only 24 bits of entropy and applies no rate limiting to the unauthenticated reset-password endpoint. Remote attackers knowing the administrator email can exhaust the keyspace through concurrent requests to reset the admin password and gain account access.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-90562

Published

LangBot

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "langbot-app",
                    "product": "LangBot",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:pypi/langbot",
                    "versions": [
                        {
                            "version": "4.0.8.1",
                            "lessThan": "4.10.11",
                            "status": "affected",
                            "versionType": "custom"
                        }
                    ]
                }

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