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CVE-2026-59713 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CNA: [email protected]CVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/Leantime/leantime	[email protected]	Source CodeVendor
https://github.com/Leantime/leantime/commit/9630eb7db682fb1b4e23cdabf3428d03ec6f5094	[email protected]	Source CodeVendor
https://github.com/Leantime/leantime/issues/3535	[email protected]	ExploitIssue TrackingTechnical DescriptionVendor
https://www.vulncheck.com/advisories/leantime-oidc-login-csrf-via-unconditional-state-verification-stub	[email protected]	AdvisoryRemedy

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-352	Cross-Site Request Forgery (CSRF)	[email protected]

Affected Products

Product	Versions
Leantime	<= 3.4.4 (semver)
CPE cpe:2.3:a:leantime:leantime:::::::: Remediation Upgrade: 3.9.7moderate effort

Change History

3 change records found show changes

Date	Action	Recorded By
Sep 17, 2026	CVE Modified	[email protected]
Jul 7, 2026	CVE Modified	CISA-ADP
Jul 6, 2026	New CVE Received	[email protected]