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CVE-2026-59713

Leantime - OIDC Login CSRF via Unconditional State Verification Stub

CVSS 4.0 8.6 HIGHCVSS 3.1 8.1 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-59713

Published

Leantime contains an OIDC login CSRF vulnerability in the verifyState() method that unconditionally returns true without validating state parameters. Attackers can craft malicious callback URLs with attacker-controlled authorization codes to perform session fixation, logging victims in as the attacker.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-59713

Published

Leantime

Vendor product

Publisher's version information

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

{
                    "vendor": "Leantime",
                    "product": "Leantime",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:github/Leantime/leantime",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThanOrEqual": "3.4.4"
                        }
                    ]
                }

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