PT-2026-56015 · Leantime · Leantime

George Chen · Published 2026-07-06 · Updated 2026-07-06 · CVE-2026-59713

Mitre

CVSS v3.1

8.1

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

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.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2026-59713

Affected Products

Leantime

References · 5

• https://github.com/Leantime/leantime/commit/9630eb7db682fb1b4e23cdabf3428d03ec6f5094 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-59713 · Security Note
• https://github.com/Leantime/leantime · Note
• https://github.com/Leantime/leantime/issues/3535 · Note
• https://vulncheck.com/advisories/leantime-oidc-login-csrf-via-unconditional-state-verification-stub · Note